I recently installed a new Radeon 9800 Pro after my old Radeon 9800 Pro burned out. It was fine on Windows bootup but when i open any games, artifacts appear. I tried to fix it by changing refersh rates etc. but nothing works. When i ran AtiTool and scanned for artifacts it beeped almost every second meaning it detected artifacts. In the log file it says that the pixels don't match. How can i fix this problem?