Ok Ive been using an ATI Radeon 4850 and from time to time I get graphic distortions and flickering textures in games. Sometimes I just restart the game and the issue is resolved, other times it does not go away. It is more prevalent in graphic intensive games and never occurs with normal windows apps. I have the newest ATI drivers and thought it might be a heat issue however I always run the Video card fan speeds at 100% and my temps are usually around 38c idle... anyone have any clue as to why this is happening?