I had 9.0 HyperSLI installed. Got blue screens when I upgraded to 310.90 nvidia drivers. Uninstalled 9.0 sli and rebooted. Reinstalled 9.6 sli and now all is well. Thank you once again Anatolymik.
I'm running MSI 890FXA-GD70 motherboard, AMD FX-8150 8core cpu, 2 each GTX 480's gpu's, 16GB ram...