Kør driver cleaner for at fjerne div. nVidia driver rester for at være sikker.
Ellers prøv dette i BIOS (såfremt det forefindes):
AGP Aperture Size = 32
Side Band Addressing = Disabled
Fast Write = Disabled
AGP mode/speed = 4x
Prøv så at installere en GFX driver.
(Husk at installere bundkort driveren FØR GFX driveren, hvis ikke du har en bundkort driver lagt ind)