Hello all, I recently upgraded my computer to AMD 64 3200+, gigabyte k8 triton mobo, 1.5 gig of ram, and a BFG 6600GT. When i load games like Need for speed underground, or FEAR, after a while the graphics will turn into little purple and green squares. this only happens when i'm in medium quality (for fear) and high quality for nfs. Just wondering if anyone has had this problem and how could i possibly fix it. I have all up to date drivers and so forth. Not too sure how else to explain my problem, hope it helps.