I'm having a problem with I believe to be overheating. Although, I don't think the card is supposed to overheat this quickly. My PSU is a 535w Enermax FMA 12v1 = 18A 12v2 = 18A Which, according to the manual gives me a total of 34A which seems enough for the card. So far I can replicate the problem as follows (roughly): Call of Duty 1 runs fine but when I try to run Far Cry or Quake4 or anything newer the card gets real hot then the screen will go blank. This lasts for about 30secs before the PC restarts itself. After a reboot Windows tells me my display driver has issued a "stop" command, followed by the usual "send error report" to microsoft tool. However, if I try to run anything with a 3d graphic, including the Catalyst 3d settings, the screen will straight away go blank again and will repeat the process. Only after turning the PC off and back on again will I be able to run 3d apps. I try running the PC with the case off but the problem still happens, albeit after 10 more mins of play. Bear in mind, Call of Duty 1 seems fine no matter what, so I assume the other games are just putting more stress on the card. Is my card a duff one?