The trouble is with the latest Nvidia drivers. This has been discussed ad nauseam in the troubleshooting thread, which is also where you should have posted this, as you should know by now. Anyway, I plan to make a dedicated thread specific to this issue since it's so significant.
Sorry for that. Actually, i sent a message to you, with the exact same i wrote here, but you never replied it. I sent that message last month to you.