I checked the temps they seemed fine 40c idle, didn't check under load. Used the stock drivers off the disk (don't know the version #), but he updated to the latest 12.3 driver when he tried running Runes of Magic, it did it even in the browser based game Drakensang. No white boxes then, just graphics all out of place and flickering. I'm having him reseat his memory, video card, check all power connections, video connection, and to make sure the video card fan is spinning. He has a DVI to VGA adapter that I told him to try as well. If all this fails I'll tell him to RMA the card. Good thing he bought everything from Newegg.