I have an ATI Radeon 9800 Pro and started getting artifacts. I searched online and most suggest it was overheating. Bought Arctic Silver 5 (AS5) Thermal Compound and Arctic-Cooling VGA Silencer. Removed Heatsink, applied thin layer of AS5, installed VGA Silencer. Ran 3dMark03 and still have artifacts. (shown on screenshot). Notice under the wing of the plane, and the text on the bottom displaying the fps and other info are not showing properly. Time for a new video card?