it *looks* like you have bad video card memory but I wouldnt like to say for sure. do you get the same results using other openGL apps/programs? unfortunatly ATI arent best known for great opengl support, but the card is still pretty new so maybe things will get better in time. one other thing - are you overclocking your pc at all? I've read on a few forums people saying that the 9700pro isnt too OC friendly so that might be a prob??