also run gpu at its factory clock settings if the driver doesnt help and you are overclocking. I got some funky light green gibberish crashing in BF3. I switched to reference clock on the 570 and it went away. Turns out I just needed to up the voltage a hair on my overclock and that took care of it too. I'm not saying at all that you should increase your volts, just stating for reference that I had two solutions to the same problem.