Possible Duplicate:
My computer boots to a black screen, what options do I have to fix it?
A few days ago, I upgraded to 12.10. No problems during installation other than two or three errors saying that it was trying to upgrade to something that was already install. So it finished, and asks me to reboot. I reboot, pass grub with no problems, loads up the purple screen from grub, and then hangs on a black screen.
I have tried going into recovery mode, with no luck. I have tried going to lower kernel versions with no luck. I did upgrade the kernel to 3.3.6 to stop the constant freezing freezing with Intel HD 4000.
Also, I did try pressing "e" on the grub menu, changing "quiet splash" to "nomodeset" and that doesn't work.
I have a LiveCD with 12.10 handy, and waiting.