A couple days ago, my games (Saints Row/Skyim/Arma3) started to either crash to desktop with the message "display driver stopped responding and has recovered" or just black-screened and returned to the game with lag. After several attempts at fixing the problem, I've scanned my entire computer for malware and viruses, installed old, new and beta drivers for my GPU, and changed my Nvidia power management mode to "prefer maximum performance". None of these have produced any effect. I have a GeForce 660 GTX graphics card. The GPU's temperature was readout at 45 C. I would appreciate any help you can offer.