anyone have a issue with system freezing running games and possible solution. Asus crosshair formula z board, 32 gig ram , 3 R280 graphic cards in crossfire mode and all latest drivers. I have ran realbench and it freezes during OpenCL test but if unchecking OpenCL test system runs fine with no freezing during other tests. even when OpenCL is turned of games still freeze and I to do hard reboot. anyone have a fix for this