Have you used your machine with any other monitors?
Please run scf / scannow: SFC /SCANNOW Command - System File Checker
and post the .CBS file. You may have corrupted video drivers
Check in safe mode if you can change the screen resolution. Try the lowest possible setting, if it is already there bump it up one or two. The video may be out of range. Then try a restart.
Not sure if you have on-board video, but if you do, and you are working off a separate video card you could go in to the system bios and search through the screens for a command saying "enable on-board VGA, and disable it.
Save the new settings and start up as normal. See if that helps.
Meanwhile to help further please go to:http://www.sevenforums.com/crashes-d...tructions.html
And follow the instructions there. I will then go over your report to see if I can find anything.