Nah it was a bad tweaksrus driver, gave others probs too, blue screening etc, changed it and instantly pc was fine. THe drivers for the 7950gx2 suck big time, the news ones dont like it at all.
ah sorry misunderstood u, the no picture issue i read is a thing with the 7950s and the sli issue, not sure why. It works in hirens dos etc ad normal dos but not when its half way thru loading the windows drivers, ie when it scans the drive.