Hey guys...

Some graphics are beginning to appear a little "too" shiny in cs:source. When I exit game and go back in again, these "shiny" graphics have now turnt purple. I am using ATI tool to over clock the card, but only when in game, and not a huge amount of over clocking either. Beginning to piss me off a bit now. Would a 6800GS be a good alternative ?

Better still what is causing the prob, and how can i fix becuase I do like ATi