diff --git a/ryzom/client/src/connection.cpp b/ryzom/client/src/connection.cpp
index ce887e48e..8163ac6cb 100644
--- a/ryzom/client/src/connection.cpp
+++ b/ryzom/client/src/connection.cpp
@@ -195,38 +195,9 @@ bool hasPrivilegeEG() { return (UserPrivileges.find(":EG:") != std::string::npos
 // Restore the video mode (fullscreen for example) after the connection (done in a window)
 void connectionRestoreVideoMode ()
 {
-	// Setup full screen if we have to
-	UDriver::CMode mode;
-	Driver->getCurrentScreenMode(mode);
-
-	if (mode.Windowed)
-	{
-		uint32 width, height;
-		Driver->getWindowSize(width, height);
-		mode.Width = width;
-		mode.Height = height;
-	}
-
-	// don't allow sizes smaller than 1024x768
-	if (ClientCfg.Width < 1024) ClientCfg.Width = 1024;
-	if (ClientCfg.Height < 768) ClientCfg.Height = 768;
-
 	if (StereoDisplay)
 		StereoDisplayAttached = StereoDisplay->attachToDisplay();
 
-	if (!StereoDisplayAttached && (
-		(ClientCfg.Windowed != mode.Windowed) ||
-		(ClientCfg.Width != mode.Width) ||
-		(ClientCfg.Height != mode.Height)))
-	{
-		mode.Windowed	= ClientCfg.Windowed;
-		mode.Depth		= uint8(ClientCfg.Depth);
-		mode.Width		= ClientCfg.Width;
-		mode.Height		= ClientCfg.Height;
-		mode.Frequency	= ClientCfg.Frequency;
-		setVideoMode(mode);
-	}
-
 	// And setup hardware mouse if we have to
 	InitMouseWithCursor (ClientCfg.HardwareCursor && !StereoDisplayAttached);
 	SetMouseFreeLook ();
diff --git a/ryzom/client/src/init.cpp b/ryzom/client/src/init.cpp
index 206122704..87b16d1bf 100644
--- a/ryzom/client/src/init.cpp
+++ b/ryzom/client/src/init.cpp
@@ -1061,43 +1061,45 @@ void prelogInit()
 			return;
 		}
 
-		// used to determine screen default resolution
-		if (ClientCfg.Width < 800 || ClientCfg.Height < 600)
+		UDriver::CMode mode;
+		// first run (no client.cfg)
+		if (ClientCfg.Width == 0  || ClientCfg.Height == 0)
 		{
-			UDriver::CMode mode;
-
-			CConfigFile::CVar *varPtr = NULL;
-
-			if (!ClientCfg.Windowed && Driver->getCurrentScreenMode(mode))
+			if (Driver->getCurrentScreenMode(mode))
 			{
+				// fullscreen, using monitor resolution
+				mode.Windowed = false;
+
+				ClientCfg.Windowed = mode.Windowed;
 				ClientCfg.Width = mode.Width;
 				ClientCfg.Height = mode.Height;
 				ClientCfg.Depth = mode.Depth;
 				ClientCfg.Frequency = mode.Frequency;
-
-				// update client.cfg with detected depth and frequency
-				varPtr = ClientCfg.ConfigFile.getVarPtr("Depth");
-				if(varPtr)
-					varPtr->forceAsInt(ClientCfg.Depth);
-
-				varPtr = ClientCfg.ConfigFile.getVarPtr("Frequency");
-				if(varPtr)
-					varPtr->forceAsInt(ClientCfg.Frequency);
 			}
 			else
 			{
+				// fallback
+				ClientCfg.Windowed = true;
 				ClientCfg.Width = 1024;
 				ClientCfg.Height = 768;
 			}
 
 			// update client.cfg with detected resolution
-			varPtr = ClientCfg.ConfigFile.getVarPtr("Width");
-			if(varPtr)
-				varPtr->forceAsInt(ClientCfg.Width);
+			ClientCfg.writeBool("FullScreen", !ClientCfg.Windowed, true);
+			ClientCfg.writeInt("Width", ClientCfg.Width, true);
+			ClientCfg.writeInt("Height", ClientCfg.Height, true);
+			ClientCfg.writeInt("Depth", ClientCfg.Depth, true);
+			ClientCfg.writeInt("Frequency", ClientCfg.Frequency, true);
 
-			varPtr = ClientCfg.ConfigFile.getVarPtr("Height");
-			if(varPtr)
-				varPtr->forceAsInt(ClientCfg.Height);
+			ClientCfg.ConfigFile.save();
+		}
+		else
+		{
+			mode.Windowed = ClientCfg.Windowed;
+			mode.Width = ClientCfg.Width;
+			mode.Height = ClientCfg.Height;
+			mode.Depth = ClientCfg.Depth;
+			mode.Frequency = ClientCfg.Frequency;
 		}
 
 		CLoginProgressPostThread::getInstance().step(CLoginStep(LoginStep_VideoModeSetup, "login_step_video_mode_setup"));
@@ -1107,25 +1109,6 @@ void prelogInit()
 		// Check the driver is not is 16 bits
 		checkDriverDepth ();
 
-		UDriver::CMode mode;
-
-		if (Driver->getCurrentScreenMode(mode))
-		{
-			// use current mode if its smaller than 1024x768
-			// mode should be windowed already, but incase its not, use the mode as is
-			if (mode.Windowed && (mode.Width > 1024 && mode.Height > 768))
-			{
-				mode.Width		= 1024;
-				mode.Height		= 768;
-			}
-		}
-		else
-		{
-			mode.Width = 1024;
-			mode.Height = 768;
-			mode.Windowed = true;
-		}
-
 		// Disable Hardware Vertex Program.
 		if(ClientCfg.DisableVtxProgram)
 			Driver->disableHardwareVertexProgram();
@@ -1260,10 +1243,11 @@ void prelogInit()
 		else
 		{
 			// position is not saved in config so center the window
-			if (Driver->getCurrentScreenMode(mode))
+			UDriver::CMode tmp;
+			if (Driver->getCurrentScreenMode(tmp))
 			{
-				posX = (mode.Width - Driver->getWindowWidth())/2;
-				posY = (mode.Height - Driver->getWindowHeight())/2;
+				posX = (tmp.Width - Driver->getWindowWidth())/2;
+				posY = (tmp.Height - Driver->getWindowHeight())/2;
 			}
 		}