Hey guys, I'm experiencing some issues with my reference AMD 7950. It is flashed with Sapphire's MAC 7950 rom and works at full 5GT/s in PCIE 2.0 in my 4.1 Mac Pro. However, after maybe 15-20 min of watching any kind of flash video or editing in final cut pro x, it just freezes, display shows stripes and then it either restarts or turns off. I then have to wait about 2 min to turn in back on because if I do it earlier, it doesn't show my bootscreen or the OS. I already tried both SMC and PRAM reset but no luck. Card's fan spins faster when the system is booting but once it's in the OS, it's at its lower speed and remains there even when I edit videos and therefore, it runs very very hot :/ Does anyone have similar issues? Can it be overheating? - if so, how do I check the card's temperature?