I was hoping I could resolve this myself, but since I’ve installed everything and verified everything I have installed relating to PlainSight is up to date and installed correctly, I don’t know what I’m missing. :s
System.NullReferenceException: Object reference not set to an instance of an object.
  at PlainSight.UILayer.UnloadTextures()
  at PlainSight.GameplayScreen.UnloadContent(Boolean hardExit)
  at BeatEngine.ScreenSystem.ScreenManager.UnloadContent()
  at Microsoft.Xna.Framework.DrawableGameComponent.Dispose(Boolean disposing)
  at Microsoft.Xna.Framework.GameComponent.Dispose()
  at Microsoft.Xna.Framework.Game.Dispose(Boolean disposing)
  at Microsoft.Xna.Framework.Game.Dispose()
  at PlainSight.Program.Main(String[] args)

The error I get when clicking on anything but the Options menu item. I ran the .net verification tool that shows you’ve got them installed correctly, it said I did. Checked Microsoft update, no new updates for .Net, I have XNA 2.0 and 3.1 installed and showing correctly. I really hope someone can help, I’d like to play this game. : (

I’d uninstall XNA 2.0 as multiple XNA installs have been known to cause problems!

Also could you please tell me what graphics card your system uses?

Tried uninstalling XNA 2.0 but the crash persisted.

Yes yes, Nvidia GeForce 9800 GT, I’m also running Windows XP SP3 32-bit, hope this helps. ^^