I have a ATI Radeon 2900 XT with a Arctic Cooling Accelero Xtreme 2900 VGA Cooler attached to it. It is said that the cooler decreases temp by 20C. My case is an Antec 900 gaming case so the air flow is great and inside the case is really cool. When ever I play games on high graphics but NOT overclocking, my graphics card overheats and my computer resets. The graphics card is crazy hot when I touch it. Everything inside my case is cold other than the graphics card. When I first got my graphics card I could play games at full with the stock cooler just fine. I have only had the ATI Radeon 2900 XT since Christmas 2007. Is the card just broken? I have cleaned the dust out and it changed nothing.