Hello!
I have tried what you have done but it didn't work for me. I have got the following errormessage:

Microsoft.Xna.Framework.NoSuitableGraphicsDeviceException was unhandled
Message="Could not find a Direct3D device that has a Direct3D9-level driver and supports pixel shader 1.1 or greater."
Source="Microsoft.Xna.Framework.Game"
StackTrace:
at Microsoft.Xna.Framework.GraphicsDeviceManager.CheckForAvailableSupportedHardware()
at Microsoft.Xna.Framework.GraphicsDeviceManager.ChangeDevice(Boolean forceCreate)
at Microsoft.Xna.Framework.GraphicsDeviceManager.Microsoft.Xna.Framework.IGraphicsDeviceManager.CreateDevice()
at Microsoft.Xna.Framework.Game.Run()
at XNA_Tutorial_part1.Program.Main(String[] args) in C:\Documents and Settings\Robi\Dokumentumok\Visual Studio 2005\Projects\XNA Tutorial part1\XNA Tutorial part1\Program.cs:line 14

Thank you!