Try to Repair or Use Restore Point .
Tried a few times and it failed but i was able to get in safe mode.
Once in safe mode i uninstalled the video drivers and went with the generic drivers with Vista.
After that i went to the Nvidia site and through the archive of drivers trying drivers from 2008 - 2010 and all of them resulted in a blank screen for a bit and then blue screen.
The laptop is fine as long as i use drivers that dont support 3d.
Not sure what to do next, or what could be in conflict with the drivers.