Hi guys, Whilst working, I am getting an intermittent blue screen. Config: mac pro 5,1 3.3 hex 48GB ECC RAM 240GB Samsung 840 Pro SSD 2 x 2TB Caviar Blacks EVGA GTX680 2GB Mac Edition - connected to 2 old Dell Displays, both on DVI. Running up to date ML Just while I am working (usually in Amira, but also in the finder, sometimes), intermittent, usually lasts only a second or so, affects both displays. Not related to any particular task. Bit unnerving. Any ideas? Thanks for your help guys.