@George; I didn't know you actually went through with the updating; the 3 commands I gave you to help me to troubleshoot won't help anymore if the updates are finished. Next time, as I said in post #6: before an upgrade like this, you can use the -s switch after the apt-get command first, so we can see what apt wants to do, and preempt any potential problems. If everything looks kosher, then you can go ahead, and the risk of breaking is minimized. For now, is everything working, or are there problems to solve? You mentioned something about nvidia. Have you rebooted? To check your current kernel version, type 'uname -a' in a terminal, but you would also have to reboot for that, and I don't know if you've done that or not.