I have a GeForce Ti 4200 and up until a couple of weeks back it was working fine. Now I can hardly play games that are 3D. Everything 2D loads fine (i.e. menus) but when it gets to the game I just see a mostly white screen with a few details. I don't know too much about computers so its probably just something I've accidently pressed! Any chance of a solution? Oh and I've checked many times for spyware etc. so I doubt its that. Thanks, Dan.