So far I have tried GUI miner, and phoenix with phatk kernel, I also tried some java based one but forgot what its called. I always run into a problem where I get either a white screen or a white screen with columns (http://i55.tinypic.com/24vqiw1.png
) and the system freezes. This however does not happen when I am mining on only one card. I have a 5850 and a 5830. I have tried both with crossfire enabled and disabled. The crashes are a little worse with crossfire disabled (sound stops playing). Neither of the cards are overclocked. And I can use both of them with folding at home for weeks on end with no problem. Temperatures stay below 82C on the 5850 and stay around 70C on the 5830. What could be going wrong?
My system: 5850
video driver 11.6
Windows 7 ultimate x64 sp1
850 watt psu