Help with Graphics card.. Hi! I have a Visiontek Geforce 3 64mb agp installed on my Athlon 1.3ghz with Win2k. When ever I am playing an opengl game, on some times my computer freezes. It doesn't happen all the time but it happends usually in the middle of a game. Sometime it happends and sometimes it doesn't.... not only in games but I also got a screensaver with opengl and that too freezes... I know its my GFX card so can anyone help me? My mobo is MSI kt7 turbo with 512mb of ram. thanks.