The word d-r-i-v-e-r disappears from my posts when I log out.
I know you said that you updated your NVidia d-r-i-v-e-r, but I'd consider trying to update it again.
Did you choose the "clean install" option?
I always have trouble with NVidia updates.
Recently I tried to update XP with the latest d-r-i-v-e-r and it hosed my Windows 7 and XP operating systems!
I couldn't boot into either OS, even using the various "Safe Mode
With some trepidation I tried updating it again (a couple of days ago, using the same installer) and it worked perfectly.