diff --git a/OpenRA.FileFormats/Graphics/IGraphicsDevice.cs b/OpenRA.FileFormats/Graphics/IGraphicsDevice.cs
index 0e51dc109d..7fb27b27b2 100755
--- a/OpenRA.FileFormats/Graphics/IGraphicsDevice.cs
+++ b/OpenRA.FileFormats/Graphics/IGraphicsDevice.cs
@@ -21,12 +21,17 @@ namespace OpenRA.FileFormats.Graphics
 
 		public RendererAttribute( Type graphicsDeviceType )
 		{
-			if( !typeof( IGraphicsDevice ).IsAssignableFrom( graphicsDeviceType ) )
+			if( !typeof( IDeviceFactory ).IsAssignableFrom( graphicsDeviceType ) )
 				throw new InvalidOperationException( "Incorrect type in RendererAttribute" );
 			Type = graphicsDeviceType;
 		}
 	}
 
+	public interface IDeviceFactory
+	{
+		IGraphicsDevice Create( Size size, WindowMode windowMode, bool vsync ); 
+	}
+
 	public interface IGraphicsDevice
 	{
 		IVertexBuffer<Vertex> CreateVertexBuffer( int length );
diff --git a/OpenRA.Game/Graphics/Renderer.cs b/OpenRA.Game/Graphics/Renderer.cs
index 337989e939..3675d6b08c 100644
--- a/OpenRA.Game/Graphics/Renderer.cs
+++ b/OpenRA.Game/Graphics/Renderer.cs
@@ -142,11 +142,11 @@ namespace OpenRA.Graphics
 
 		static IGraphicsDevice CreateDevice( Assembly rendererDll, int width, int height, WindowMode window, bool vsync )
 		{
-			var argTypes = new Type[] { typeof( int ), typeof( int ), typeof( WindowMode ), typeof( bool ) };
-			var argValues = new object[] { width, height, window, vsync };
-			
 			foreach( RendererAttribute r in rendererDll.GetCustomAttributes( typeof( RendererAttribute ), false ) )
-				return (IGraphicsDevice)r.Type.GetConstructor( argTypes ).Invoke( argValues );
+			{
+				var factory = (IDeviceFactory) r.Type.GetConstructor( Type.EmptyTypes ).Invoke( null );
+				return factory.Create( new Size( width, height ), window, vsync );
+			}
 			
 			throw new InvalidOperationException("Renderer DLL is missing RendererAttribute to tell us what type to use!");
 		}
diff --git a/OpenRA.Renderer.Cg/GraphicsDevice.cs b/OpenRA.Renderer.Cg/GraphicsDevice.cs
index 31eef6a948..e6962992f0 100755
--- a/OpenRA.Renderer.Cg/GraphicsDevice.cs
+++ b/OpenRA.Renderer.Cg/GraphicsDevice.cs
@@ -16,10 +16,18 @@ using Tao.Cg;
 using Tao.OpenGl;
 using Tao.Sdl;
 
-[assembly: Renderer(typeof(OpenRA.Renderer.Cg.GraphicsDevice))]
+[assembly: Renderer(typeof(OpenRA.Renderer.Cg.DeviceFactory))]
 
 namespace OpenRA.Renderer.Cg
 {
+	public class DeviceFactory : IDeviceFactory
+	{
+		public IGraphicsDevice Create(Size size, WindowMode windowMode, bool vsync)
+		{
+			return new GraphicsDevice( size, windowMode, vsync );
+		}
+	}
+
 	public class GraphicsDevice : IGraphicsDevice
 	{
 		Size windowSize;
@@ -75,7 +83,7 @@ namespace OpenRA.Renderer.Cg
 			throw new InvalidOperationException("CG Error. See graphics.log for details");
 		};
 
-		public GraphicsDevice( int width, int height, WindowMode window, bool vsync )
+		public GraphicsDevice( Size size, WindowMode window, bool vsync )
 		{
 			Console.WriteLine("Using Cg renderer");
 			Sdl.SDL_Init( Sdl.SDL_INIT_NOPARACHUTE | Sdl.SDL_INIT_VIDEO );
@@ -102,7 +110,7 @@ namespace OpenRA.Renderer.Cg
 				break;
 			}
 
-			surf = Sdl.SDL_SetVideoMode( width, height, 0, Sdl.SDL_OPENGL | windowFlags );
+			surf = Sdl.SDL_SetVideoMode( size.Width, size.Height, 0, Sdl.SDL_OPENGL | windowFlags );
 
 			Sdl.SDL_WM_SetCaption( "OpenRA", "OpenRA" );
 			Sdl.SDL_ShowCursor( 0 );
@@ -111,7 +119,7 @@ namespace OpenRA.Renderer.Cg
 
 			CheckGlError();
 
-			windowSize = new Size( width, height );
+			windowSize = size;
 
 			cgContext = Tao.Cg.Cg.cgCreateContext();
 
diff --git a/OpenRA.Renderer.Gl/GraphicsDevice.cs b/OpenRA.Renderer.Gl/GraphicsDevice.cs
index d58fb6c7df..7033f27de8 100755
--- a/OpenRA.Renderer.Gl/GraphicsDevice.cs
+++ b/OpenRA.Renderer.Gl/GraphicsDevice.cs
@@ -11,16 +11,23 @@
 using System;
 using System.Drawing;
 using System.IO;
+using System.Linq;
 using OpenRA.FileFormats.Graphics;
-using Tao.Cg;
 using Tao.OpenGl;
 using Tao.Sdl;
-using System.Linq;
 
-[assembly: Renderer(typeof(OpenRA.Renderer.Glsl.GraphicsDevice))]
+[assembly: Renderer(typeof(OpenRA.Renderer.Glsl.DeviceFactory))]
 
 namespace OpenRA.Renderer.Glsl
 {
+	public class DeviceFactory : IDeviceFactory
+	{
+		public IGraphicsDevice Create(Size size, WindowMode windowMode, bool vsync)
+		{
+			return new GraphicsDevice( size, windowMode, vsync );
+		}
+	}
+
 	public class GraphicsDevice : IGraphicsDevice
 	{
 		Size windowSize;
@@ -65,7 +72,7 @@ namespace OpenRA.Renderer.Glsl
 			Log.Write("graphics", Gl.glGetString(Gl.GL_EXTENSIONS));
 		}
 
-		public GraphicsDevice( int width, int height, WindowMode window, bool vsync )
+		public GraphicsDevice( Size size, WindowMode window, bool vsync )
 		{
 			Console.WriteLine("Using Gl renderer");
 			Sdl.SDL_Init( Sdl.SDL_INIT_NOPARACHUTE | Sdl.SDL_INIT_VIDEO );
@@ -89,7 +96,7 @@ namespace OpenRA.Renderer.Glsl
 				break;
 			}
 
-			surf = Sdl.SDL_SetVideoMode( width, height, 0, Sdl.SDL_OPENGL | windowFlags );
+			surf = Sdl.SDL_SetVideoMode( size.Width, size.Height, 0, Sdl.SDL_OPENGL | windowFlags );
 
 			Sdl.SDL_WM_SetCaption( "OpenRA", "OpenRA" );
 			Sdl.SDL_ShowCursor( 0 );
@@ -115,7 +122,7 @@ namespace OpenRA.Renderer.Glsl
 				throw new InvalidProgramException("Unsupported GPU. See graphics.log for details.");
 			}
 			
-			windowSize = new Size( width, height );
+			windowSize = size;
 
 			Gl.glEnableClientState( Gl.GL_VERTEX_ARRAY );
 			CheckGlError();
diff --git a/OpenRA.Renderer.Null/NullGraphicsDevice.cs b/OpenRA.Renderer.Null/NullGraphicsDevice.cs
index fa507b4726..cbd1739dd9 100644
--- a/OpenRA.Renderer.Null/NullGraphicsDevice.cs
+++ b/OpenRA.Renderer.Null/NullGraphicsDevice.cs
@@ -10,22 +10,29 @@
 
 using System;
 using System.Drawing;
-using System.IO;
 using OpenRA.FileFormats.Graphics;
 using OpenRA.Graphics;
 
-[assembly: Renderer(typeof(OpenRA.Renderer.Null.NullGraphicsDevice))]
+[assembly: Renderer(typeof(OpenRA.Renderer.Null.DeviceFactory))]
 
 namespace OpenRA.Renderer.Null
 {
+	public class DeviceFactory : IDeviceFactory
+	{
+		public IGraphicsDevice Create(Size size, WindowMode windowMode, bool vsync)
+		{
+			return new NullGraphicsDevice( size, windowMode, vsync );
+		}
+	}
+
 	public class NullGraphicsDevice : IGraphicsDevice
 	{
 		public Size WindowSize { get; internal set; }
 
-		public NullGraphicsDevice(int width, int height, WindowMode window, bool vsync)
+		public NullGraphicsDevice(Size size, WindowMode window, bool vsync)
 		{
 			Console.WriteLine("Using Null renderer");
-			WindowSize = new Size(width, height);
+			WindowSize = size;
 		}
 
 		public void EnableScissor(int left, int top, int width, int height) { }