I'm having a problem with my PowerColor X800 GTO 16, when gaming. If I'm playing for over 2 hours or so, then every time the card has a load, the screen becomes black for a second or two. This happens more often if I'm using higher settings/resolution in the game (fullscreen). After asking this question to someone else, I used ATITool to monitor the temperatures, and it kept black-screening on loading when it got a bit too high (+60degreesC). Does anyone know how to fix this, as black-screening is really annoying.