diff --git a/code/ryzom/client/src/main_loop.cpp b/code/ryzom/client/src/main_loop.cpp
index 36be09144..64379b7c2 100644
--- a/code/ryzom/client/src/main_loop.cpp
+++ b/code/ryzom/client/src/main_loop.cpp
@@ -144,6 +144,7 @@
 #include "profiling.h"
 #include "main_loop_debug.h"
 #include "main_loop_temp.h"
+#include "main_loop_utilities.h"
 
 
 ///////////
@@ -388,325 +389,6 @@ void buildCameraClippingPyramid (vector<CPlane> &planes)
 	}
 }
 
-//---------------------------------------------------
-// update the camera perspective setup
-//---------------------------------------------------
-void	updateCameraPerspective()
-{
-	float	fov, aspectRatio;
-	computeCurrentFovAspectRatio(fov, aspectRatio);
-
-	// change the perspective of the scene
-	if(!MainCam.empty())
-		MainCam.setPerspective(fov, aspectRatio, CameraSetupZNear, ClientCfg.Vision);
-	// change the perspective of the root scene
-	if(SceneRoot)
-	{
-		UCamera cam= SceneRoot->getCam();
-		cam.setPerspective(fov, aspectRatio, SceneRootCameraZNear, SceneRootCameraZFar);
-	}
-}
-
-//---------------------------------------------------
-// Compare ClientCfg and LastClientCfg to know what we must update
-//---------------------------------------------------
-void updateFromClientCfg()
-{
-	CClientConfig::setValues();
-	ClientCfg.IsInvalidated = false;
-
-	// GRAPHICS - GENERAL
-	//---------------------------------------------------
-	if ((ClientCfg.Windowed != LastClientCfg.Windowed)	||
-		(ClientCfg.Width != LastClientCfg.Width)		||
-		(ClientCfg.Height != LastClientCfg.Height)		||
-		(ClientCfg.Depth != LastClientCfg.Depth)		||
-		(ClientCfg.Frequency != LastClientCfg.Frequency))
-	{
-		setVideoMode(UDriver::CMode(ClientCfg.Width, ClientCfg.Height, (uint8)ClientCfg.Depth,
-									ClientCfg.Windowed, ClientCfg.Frequency));
-	}
-
-	if (ClientCfg.DivideTextureSizeBy2 != LastClientCfg.DivideTextureSizeBy2)
-	{
-		if (ClientCfg.DivideTextureSizeBy2)
-			Driver->forceTextureResize(2);
-		else
-			Driver->forceTextureResize(1);
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.WaitVBL != LastClientCfg.WaitVBL)
-	{
-		if(ClientCfg.WaitVBL)
-			Driver->setSwapVBLInterval(1);
-		else
-			Driver->setSwapVBLInterval(0);
-	}
-
-	// GRAPHICS - LANDSCAPE
-	//---------------------------------------------------
-	if (ClientCfg.LandscapeThreshold != LastClientCfg.LandscapeThreshold)
-	{
-		if (Landscape) Landscape->setThreshold(ClientCfg.getActualLandscapeThreshold());
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.LandscapeTileNear != LastClientCfg.LandscapeTileNear)
-	{
-		if (Landscape) Landscape->setTileNear(ClientCfg.LandscapeTileNear);
-	}
-
-	//---------------------------------------------------
-	if (Landscape)
-	{
-		if (ClientCfg.Vision != LastClientCfg.Vision)
-		{
-			if (!ClientCfg.Light)
-			{
-				// Not in an indoor ?
-				if (ContinentMngr.cur() && !ContinentMngr.cur()->Indoor)
-				{
-					// Refresh All Zone in streaming according to the refine position
-					vector<string>		zonesAdded;
-					vector<string>		zonesRemoved;
-					const R2::CScenarioEntryPoints::CCompleteIsland *ci = R2::CScenarioEntryPoints::getInstance().getCompleteIslandFromCoords(CVector2f((float) UserEntity->pos().x, (float) UserEntity->pos().y));
-					Landscape->refreshAllZonesAround(View.refinePos(), ClientCfg.Vision + ExtraZoneLoadingVision, zonesAdded, zonesRemoved, ProgressBar, ci ? &(ci->ZoneIDs) : NULL);
-					LandscapeIGManager.unloadArrayZoneIG(zonesRemoved);
-					LandscapeIGManager.loadArrayZoneIG(zonesAdded);
-				}
-			}
-		}
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.Vision != LastClientCfg.Vision || ClientCfg.FoV!=LastClientCfg.FoV ||
-		ClientCfg.Windowed != LastClientCfg.Windowed || ClientCfg.ScreenAspectRatio != LastClientCfg.ScreenAspectRatio )
-	{
-		updateCameraPerspective();
-	}
-
-	//---------------------------------------------------
-	if (Landscape)
-	{
-		if (ClientCfg.MicroVeget != LastClientCfg.MicroVeget)
-		{
-			if(ClientCfg.MicroVeget)
-			{
-				// if configured, enable the vegetable and load the texture.
-				Landscape->enableVegetable(true);
-				// Default setup. TODO later by gameDev.
-				Landscape->setVegetableWind(CVector(0.5, 0.5, 0).normed(), 0.5, 1, 0);
-				// Default setup. should work well for night/day transition in 30 minutes.
-				// Because all vegetables will be updated every 20 seconds => 90 steps.
-				Landscape->setVegetableUpdateLightingFrequency(1/20.f);
-				// Density (percentage to ratio)
-				Landscape->setVegetableDensity(ClientCfg.MicroVegetDensity/100.f);
-			}
-			else
-			{
-				Landscape->enableVegetable(false);
-			}
-		}
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.MicroVegetDensity != LastClientCfg.MicroVegetDensity)
-	{
-		// Density (percentage to ratio)
-		if (Landscape) Landscape->setVegetableDensity(ClientCfg.MicroVegetDensity/100.f);
-	}
-
-	// GRAPHICS - SPECIAL EFFECTS
-	//---------------------------------------------------
-	if (ClientCfg.FxNbMaxPoly != LastClientCfg.FxNbMaxPoly)
-	{
-		if (Scene->getGroupLoadMaxPolygon("Fx") != ClientCfg.FxNbMaxPoly)
-			Scene->setGroupLoadMaxPolygon("Fx", ClientCfg.FxNbMaxPoly);
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.Cloud != LastClientCfg.Cloud)
-	{
-		if (ClientCfg.Cloud)
-		{
-			InitCloudScape = true;
-			CloudScape = Scene->createCloudScape();
-		}
-		else
-		{
-			if (CloudScape != NULL)
-				Scene->deleteCloudScape(CloudScape);
-			CloudScape = NULL;
-		}
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.CloudQuality != LastClientCfg.CloudQuality)
-	{
-		if (CloudScape != NULL)
-			CloudScape->setQuality(ClientCfg.CloudQuality);
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.CloudUpdate != LastClientCfg.CloudUpdate)
-	{
-		if (CloudScape != NULL)
-			CloudScape->setNbCloudToUpdateIn80ms(ClientCfg.CloudUpdate);
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.Shadows != LastClientCfg.Shadows)
-	{
-		// Enable/Disable Receive on Landscape
-		if(Landscape)
-		{
-			Landscape->enableReceiveShadowMap(ClientCfg.Shadows);
-		}
-		// Enable/Disable Cast for all entities
-		for(uint i=0;i<EntitiesMngr.entities().size();i++)
-		{
-			CEntityCL	*ent= EntitiesMngr.entities()[i];
-			if(ent)
-				ent->updateCastShadowMap();
-		}
-	}
-
-	// GRAPHICS - CHARACTERS
-	//---------------------------------------------------
-	if (ClientCfg.SkinNbMaxPoly != LastClientCfg.SkinNbMaxPoly)
-	{
-		if (Scene->getGroupLoadMaxPolygon("Skin") != ClientCfg.SkinNbMaxPoly)
-			Scene->setGroupLoadMaxPolygon("Skin", ClientCfg.SkinNbMaxPoly);
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.NbMaxSkeletonNotCLod != LastClientCfg.NbMaxSkeletonNotCLod )
-	{
-		Scene->setMaxSkeletonsInNotCLodForm(ClientCfg.NbMaxSkeletonNotCLod);
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.CharacterFarClip != LastClientCfg.CharacterFarClip)
-	{
-		// Nothing to do
-	}
-
-	//---------------------------------------------------
-	if (ClientCfg.HDEntityTexture != LastClientCfg.HDEntityTexture)
-	{
-		// Don't reload Texture, will be done at next Game Start
-	}
-
-	// INTERFACE works
-
-
-	// INPUTS
-	//---------------------------------------------------
-	if (ClientCfg.CursorSpeed != LastClientCfg.CursorSpeed)
-		SetMouseSpeed (ClientCfg.CursorSpeed);
-
-	if (ClientCfg.CursorAcceleration != LastClientCfg.CursorAcceleration)
-		SetMouseAcceleration (ClientCfg.CursorAcceleration);
-
-	if (ClientCfg.HardwareCursor != LastClientCfg.HardwareCursor)
-	{
-		if (ClientCfg.HardwareCursor != IsMouseCursorHardware())
-		{
-			InitMouseWithCursor (ClientCfg.HardwareCursor);
-		}
-	}
-
-
-	// SOUND
-	//---------------------------------------------------
-	bool	mustReloadSoundMngrContinent= false;
-
-	// disable/enable sound?
-	if (ClientCfg.SoundOn != LastClientCfg.SoundOn)
-	{
-		if (SoundMngr && !ClientCfg.SoundOn)
-		{
-			nlwarning("Deleting sound manager...");
-			delete SoundMngr;
-			SoundMngr = NULL;
-		}
-		else if (SoundMngr == NULL && ClientCfg.SoundOn)
-		{
-			nlwarning("Creating sound manager...");
-			SoundMngr = new CSoundManager();
-			try
-			{
-				SoundMngr->init(NULL);
-			}
-			catch(const Exception &e)
-			{
-				nlwarning("init : Error when creating 'SoundMngr' : %s", e.what());
-				SoundMngr = 0;
-			}
-
-			// re-init with good SFX/Music Volume
-			if(SoundMngr)
-			{
-				SoundMngr->setSFXVolume(ClientCfg.SoundSFXVolume);
-				SoundMngr->setGameMusicVolume(ClientCfg.SoundGameMusicVolume);
-			}
-		}
-		else
-		{
-			nlwarning("Sound config error !");
-		}
-
-		mustReloadSoundMngrContinent= true;
-	}
-
-	// change EAX?
-	if ( SoundMngr && LastClientCfg.SoundOn &&
-		(ClientCfg.UseEax != LastClientCfg.UseEax) )
-	{
-		SoundMngr->reset();
-
-		mustReloadSoundMngrContinent= true;
-	}
-
-	// change SoundForceSoftwareBuffer?
-	if ( SoundMngr && LastClientCfg.SoundOn &&
-		(ClientCfg.SoundForceSoftwareBuffer != LastClientCfg.SoundForceSoftwareBuffer) )
-	{
-		SoundMngr->reset();
-
-		mustReloadSoundMngrContinent= true;
-	}
-
-	// change MaxTrack? don't reset
-	if ( SoundMngr && LastClientCfg.SoundOn &&
-		(ClientCfg.MaxTrack != LastClientCfg.MaxTrack))
-	{
-		SoundMngr->getMixer()->changeMaxTrack(ClientCfg.MaxTrack);
-	}
-
-	// change SoundFX Volume? don't reset
-	if (SoundMngr && ClientCfg.SoundSFXVolume != LastClientCfg.SoundSFXVolume)
-	{
-		SoundMngr->setSFXVolume(ClientCfg.SoundSFXVolume);
-	}
-
-	// change Game Music Volume? don't reset
-	if (SoundMngr && ClientCfg.SoundGameMusicVolume != LastClientCfg.SoundGameMusicVolume)
-	{
-		SoundMngr->setGameMusicVolume(ClientCfg.SoundGameMusicVolume);
-	}
-
-	// reload only if active and reseted
-	if (mustReloadSoundMngrContinent && SoundMngr && ContinentMngr.cur() && !ContinentMngr.cur()->Indoor && UserEntity)
-	{
-		SoundMngr->loadContinent(ContinentMngr.getCurrentContinentSelectName(), UserEntity->pos());
-	}
-
-	// Ok backup the new clientcfg
-	LastClientCfg = ClientCfg;
-}
-
 void preRenderNewSky ()
 {
 	CSky &sky = ContinentMngr.cur()->CurrentSky;
diff --git a/code/ryzom/client/src/main_loop_utilities.cpp b/code/ryzom/client/src/main_loop_utilities.cpp
new file mode 100644
index 000000000..26be0ab0d
--- /dev/null
+++ b/code/ryzom/client/src/main_loop_utilities.cpp
@@ -0,0 +1,359 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#include <nel/misc/types_nl.h>
+#include "main_loop_utilities.h"
+
+#include <nel/3d/u_driver.h>
+#include <nel/3d/u_cloud_scape.h>
+
+#include "game_share/scenario_entry_points.h"
+
+#include "client_cfg.h"
+#include "misc.h"
+#include "global.h"
+#include "world_database_manager.h"
+#include "continent_manager.h"
+#include "user_entity.h"
+#include "view.h"
+#include "ig_client.h"
+#include "entities.h"
+#include "input.h"
+#include "sound_manager.h"
+
+using namespace NLMISC;
+using namespace NL3D;
+
+//---------------------------------------------------
+// update the camera perspective setup
+//---------------------------------------------------
+void updateCameraPerspective()
+{
+	float	fov, aspectRatio;
+	computeCurrentFovAspectRatio(fov, aspectRatio);
+
+	// change the perspective of the scene
+	if(!MainCam.empty())
+		MainCam.setPerspective(fov, aspectRatio, CameraSetupZNear, ClientCfg.Vision);
+	// change the perspective of the root scene
+	if(SceneRoot)
+	{
+		UCamera cam= SceneRoot->getCam();
+		cam.setPerspective(fov, aspectRatio, SceneRootCameraZNear, SceneRootCameraZFar);
+	}
+}
+
+//---------------------------------------------------
+// Compare ClientCfg and LastClientCfg to know what we must update
+//---------------------------------------------------
+void updateFromClientCfg()
+{
+	CClientConfig::setValues();
+	ClientCfg.IsInvalidated = false;
+
+	// GRAPHICS - GENERAL
+	//---------------------------------------------------
+	if ((ClientCfg.Windowed != LastClientCfg.Windowed)	||
+		(ClientCfg.Width != LastClientCfg.Width)		||
+		(ClientCfg.Height != LastClientCfg.Height)		||
+		(ClientCfg.Depth != LastClientCfg.Depth)		||
+		(ClientCfg.Frequency != LastClientCfg.Frequency))
+	{
+		setVideoMode(UDriver::CMode(ClientCfg.Width, ClientCfg.Height, (uint8)ClientCfg.Depth,
+									ClientCfg.Windowed, ClientCfg.Frequency));
+	}
+
+	if (ClientCfg.DivideTextureSizeBy2 != LastClientCfg.DivideTextureSizeBy2)
+	{
+		if (ClientCfg.DivideTextureSizeBy2)
+			Driver->forceTextureResize(2);
+		else
+			Driver->forceTextureResize(1);
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.WaitVBL != LastClientCfg.WaitVBL)
+	{
+		if(ClientCfg.WaitVBL)
+			Driver->setSwapVBLInterval(1);
+		else
+			Driver->setSwapVBLInterval(0);
+	}
+
+	// GRAPHICS - LANDSCAPE
+	//---------------------------------------------------
+	if (ClientCfg.LandscapeThreshold != LastClientCfg.LandscapeThreshold)
+	{
+		if (Landscape) Landscape->setThreshold(ClientCfg.getActualLandscapeThreshold());
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.LandscapeTileNear != LastClientCfg.LandscapeTileNear)
+	{
+		if (Landscape) Landscape->setTileNear(ClientCfg.LandscapeTileNear);
+	}
+
+	//---------------------------------------------------
+	if (Landscape)
+	{
+		if (ClientCfg.Vision != LastClientCfg.Vision)
+		{
+			if (!ClientCfg.Light)
+			{
+				// Not in an indoor ?
+				if (ContinentMngr.cur() && !ContinentMngr.cur()->Indoor)
+				{
+					// Refresh All Zone in streaming according to the refine position
+					std::vector<string>		zonesAdded;
+					std::vector<string>		zonesRemoved;
+					const R2::CScenarioEntryPoints::CCompleteIsland *ci = R2::CScenarioEntryPoints::getInstance().getCompleteIslandFromCoords(CVector2f((float) UserEntity->pos().x, (float) UserEntity->pos().y));
+					Landscape->refreshAllZonesAround(View.refinePos(), ClientCfg.Vision + ExtraZoneLoadingVision, zonesAdded, zonesRemoved, ProgressBar, ci ? &(ci->ZoneIDs) : NULL);
+					LandscapeIGManager.unloadArrayZoneIG(zonesRemoved);
+					LandscapeIGManager.loadArrayZoneIG(zonesAdded);
+				}
+			}
+		}
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.Vision != LastClientCfg.Vision || ClientCfg.FoV!=LastClientCfg.FoV ||
+		ClientCfg.Windowed != LastClientCfg.Windowed || ClientCfg.ScreenAspectRatio != LastClientCfg.ScreenAspectRatio )
+	{
+		updateCameraPerspective();
+	}
+
+	//---------------------------------------------------
+	if (Landscape)
+	{
+		if (ClientCfg.MicroVeget != LastClientCfg.MicroVeget)
+		{
+			if(ClientCfg.MicroVeget)
+			{
+				// if configured, enable the vegetable and load the texture.
+				Landscape->enableVegetable(true);
+				// Default setup. TODO later by gameDev.
+				Landscape->setVegetableWind(CVector(0.5, 0.5, 0).normed(), 0.5, 1, 0);
+				// Default setup. should work well for night/day transition in 30 minutes.
+				// Because all vegetables will be updated every 20 seconds => 90 steps.
+				Landscape->setVegetableUpdateLightingFrequency(1/20.f);
+				// Density (percentage to ratio)
+				Landscape->setVegetableDensity(ClientCfg.MicroVegetDensity/100.f);
+			}
+			else
+			{
+				Landscape->enableVegetable(false);
+			}
+		}
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.MicroVegetDensity != LastClientCfg.MicroVegetDensity)
+	{
+		// Density (percentage to ratio)
+		if (Landscape) Landscape->setVegetableDensity(ClientCfg.MicroVegetDensity/100.f);
+	}
+
+	// GRAPHICS - SPECIAL EFFECTS
+	//---------------------------------------------------
+	if (ClientCfg.FxNbMaxPoly != LastClientCfg.FxNbMaxPoly)
+	{
+		if (Scene->getGroupLoadMaxPolygon("Fx") != ClientCfg.FxNbMaxPoly)
+			Scene->setGroupLoadMaxPolygon("Fx", ClientCfg.FxNbMaxPoly);
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.Cloud != LastClientCfg.Cloud)
+	{
+		if (ClientCfg.Cloud)
+		{
+			InitCloudScape = true;
+			CloudScape = Scene->createCloudScape();
+		}
+		else
+		{
+			if (CloudScape != NULL)
+				Scene->deleteCloudScape(CloudScape);
+			CloudScape = NULL;
+		}
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.CloudQuality != LastClientCfg.CloudQuality)
+	{
+		if (CloudScape != NULL)
+			CloudScape->setQuality(ClientCfg.CloudQuality);
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.CloudUpdate != LastClientCfg.CloudUpdate)
+	{
+		if (CloudScape != NULL)
+			CloudScape->setNbCloudToUpdateIn80ms(ClientCfg.CloudUpdate);
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.Shadows != LastClientCfg.Shadows)
+	{
+		// Enable/Disable Receive on Landscape
+		if(Landscape)
+		{
+			Landscape->enableReceiveShadowMap(ClientCfg.Shadows);
+		}
+		// Enable/Disable Cast for all entities
+		for(uint i=0;i<EntitiesMngr.entities().size();i++)
+		{
+			CEntityCL	*ent= EntitiesMngr.entities()[i];
+			if(ent)
+				ent->updateCastShadowMap();
+		}
+	}
+
+	// GRAPHICS - CHARACTERS
+	//---------------------------------------------------
+	if (ClientCfg.SkinNbMaxPoly != LastClientCfg.SkinNbMaxPoly)
+	{
+		if (Scene->getGroupLoadMaxPolygon("Skin") != ClientCfg.SkinNbMaxPoly)
+			Scene->setGroupLoadMaxPolygon("Skin", ClientCfg.SkinNbMaxPoly);
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.NbMaxSkeletonNotCLod != LastClientCfg.NbMaxSkeletonNotCLod )
+	{
+		Scene->setMaxSkeletonsInNotCLodForm(ClientCfg.NbMaxSkeletonNotCLod);
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.CharacterFarClip != LastClientCfg.CharacterFarClip)
+	{
+		// Nothing to do
+	}
+
+	//---------------------------------------------------
+	if (ClientCfg.HDEntityTexture != LastClientCfg.HDEntityTexture)
+	{
+		// Don't reload Texture, will be done at next Game Start
+	}
+
+	// INTERFACE works
+
+
+	// INPUTS
+	//---------------------------------------------------
+	if (ClientCfg.CursorSpeed != LastClientCfg.CursorSpeed)
+		SetMouseSpeed (ClientCfg.CursorSpeed);
+
+	if (ClientCfg.CursorAcceleration != LastClientCfg.CursorAcceleration)
+		SetMouseAcceleration (ClientCfg.CursorAcceleration);
+
+	if (ClientCfg.HardwareCursor != LastClientCfg.HardwareCursor)
+	{
+		if (ClientCfg.HardwareCursor != IsMouseCursorHardware())
+		{
+			InitMouseWithCursor (ClientCfg.HardwareCursor);
+		}
+	}
+
+
+	// SOUND
+	//---------------------------------------------------
+	bool	mustReloadSoundMngrContinent= false;
+
+	// disable/enable sound?
+	if (ClientCfg.SoundOn != LastClientCfg.SoundOn)
+	{
+		if (SoundMngr && !ClientCfg.SoundOn)
+		{
+			nlwarning("Deleting sound manager...");
+			delete SoundMngr;
+			SoundMngr = NULL;
+		}
+		else if (SoundMngr == NULL && ClientCfg.SoundOn)
+		{
+			nlwarning("Creating sound manager...");
+			SoundMngr = new CSoundManager();
+			try
+			{
+				SoundMngr->init(NULL);
+			}
+			catch(const Exception &e)
+			{
+				nlwarning("init : Error when creating 'SoundMngr' : %s", e.what());
+				SoundMngr = 0;
+			}
+
+			// re-init with good SFX/Music Volume
+			if(SoundMngr)
+			{
+				SoundMngr->setSFXVolume(ClientCfg.SoundSFXVolume);
+				SoundMngr->setGameMusicVolume(ClientCfg.SoundGameMusicVolume);
+			}
+		}
+		else
+		{
+			nlwarning("Sound config error !");
+		}
+
+		mustReloadSoundMngrContinent= true;
+	}
+
+	// change EAX?
+	if ( SoundMngr && LastClientCfg.SoundOn &&
+		(ClientCfg.UseEax != LastClientCfg.UseEax) )
+	{
+		SoundMngr->reset();
+
+		mustReloadSoundMngrContinent= true;
+	}
+
+	// change SoundForceSoftwareBuffer?
+	if ( SoundMngr && LastClientCfg.SoundOn &&
+		(ClientCfg.SoundForceSoftwareBuffer != LastClientCfg.SoundForceSoftwareBuffer) )
+	{
+		SoundMngr->reset();
+
+		mustReloadSoundMngrContinent= true;
+	}
+
+	// change MaxTrack? don't reset
+	if ( SoundMngr && LastClientCfg.SoundOn &&
+		(ClientCfg.MaxTrack != LastClientCfg.MaxTrack))
+	{
+		SoundMngr->getMixer()->changeMaxTrack(ClientCfg.MaxTrack);
+	}
+
+	// change SoundFX Volume? don't reset
+	if (SoundMngr && ClientCfg.SoundSFXVolume != LastClientCfg.SoundSFXVolume)
+	{
+		SoundMngr->setSFXVolume(ClientCfg.SoundSFXVolume);
+	}
+
+	// change Game Music Volume? don't reset
+	if (SoundMngr && ClientCfg.SoundGameMusicVolume != LastClientCfg.SoundGameMusicVolume)
+	{
+		SoundMngr->setGameMusicVolume(ClientCfg.SoundGameMusicVolume);
+	}
+
+	// reload only if active and reseted
+	if (mustReloadSoundMngrContinent && SoundMngr && ContinentMngr.cur() && !ContinentMngr.cur()->Indoor && UserEntity)
+	{
+		SoundMngr->loadContinent(ContinentMngr.getCurrentContinentSelectName(), UserEntity->pos());
+	}
+
+	// Ok backup the new clientcfg
+	LastClientCfg = ClientCfg;
+}
+
+/* end of file */
\ No newline at end of file
diff --git a/code/ryzom/client/src/main_loop_utilities.h b/code/ryzom/client/src/main_loop_utilities.h
new file mode 100644
index 000000000..48d6a3880
--- /dev/null
+++ b/code/ryzom/client/src/main_loop_utilities.h
@@ -0,0 +1,35 @@
+// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
+// Copyright (C) 2010  Winch Gate Property Limited
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#ifndef CL_MAIN_LOOP_UTILITIES_H
+#define CL_MAIN_LOOP_UTILITIES_H
+
+#include <nel/misc/types_nl.h>
+
+// Update Utilities (configuration etc)
+// Only put utility update functions here that are used in the main loop.
+// This is mainly for system configuration related functions 
+// such as config file changes.
+
+/// does not belong here
+void updateCameraPerspective();
+
+/// Compare ClientCfg and LastClientCfg to know what we must update
+void updateFromClientCfg();
+
+#endif // CL_MAIN_LOOP_UTILITIES_H
+
+/* end of file */