Hello, Just recently my HD 5850 card has begun to create artifacts on all programs and windows. In games it is just random color flashes. In mozilla firefox it will flash random parts of the window and show other windows/tabs that are currently open. I have tried updated drivers and doing a fresh install of everything with no luck. However when I go into AMD overdrive in the catalyst control center and hit the auto tune feature, as long as the auto tune is running there are no artifacts. I am really at a loss on how to fix this. I have had this card for a year and a half with no issues up until now.