Latest Nvidia Drivers????

I just downloaded the newest nvidia drivers, 301.42, on my new system that I built, and they have been displaying some issues. For one, when I try to set my cards into SLI mode, the computer will crash and reset the SLI setting and then proceed to say that the nvidia driver cannot detect a card. Also, randomly throughout the day, my computer monitor will go black and then recover saying that the "nvidia display driver failed and has recovered". After 3 or 4 of these display driver fails, the computer will crash.

Any suggestions on what to do to fix this or what the root problem could be?