Win7Pro gone nuts

All was well until I plugged in my camera to copy my recents pics to my pic folder.  I use mulitple monitors and suddenly my main monitor stopped displaying and the Display-adjust resolution-identify would make it come back, then it would disappear again and it kept reverting to my two other monitors.  I usually run 3 monitors.  I turned off the camera and unplugged it and that helped, was able to use "detect' and it found my 3rd monitor and was Ok for a minute or two, then just dropped that monitor and reverted back to only two monitors.  I decided to restart and windows wouldn't start. Finally have it back up, but the 3rd monitor won't stay in the disply.  What the heck? This is a new install, been runnning a few days Win7Pro 64 bit on i7 2600k with a Corsair 120GB SSD, mobo Z68AD3hB3.   Where do I start to track down the issue?  I have downloaded updated NVIDIA drivers for my 7300GT cards (using two cards).