Problem: Win7 instant reboot

[mrmabry]

I installed Win7 on my Mac via Bootcamp and it worked fine-- started catching up installing all the updates (over several days) and for some reason today it installed updates behind the scene and when I restarted the machine, held option, selected win7, and then it goes to a blank screen with a white cursor blinking in the top left corner and then within 2 seconds restarts.

Anyone have this problem?

I have MPB 15-inch, Early 2011