although I had too many unpleasant moments with beta versions of Ubuntu and swore every time not to install it again, today I've upgraded to 12.10.
While messing with graphics card. Somehow things escalated to this point. I have no idea what to do next...
Here is my sources.list:
#############################################################
################### OFFICIAL UBUNTU REPOS ###################
#############################################################
###### Ubuntu Main Repos
deb http://tr.archive.ubuntu.com/ubuntu/ quantal main restricted universe multiverse
###### Ubuntu Update Repos
deb http://tr.archive.ubuntu.com/ubuntu/ quantal-security main restricted universe multiverse
deb http://tr.archive.ubuntu.com/ubuntu/ quantal-updates main restricted universe multiverse
Which I have downloaded from http://repogen.simplylinux.ch/ .
My vendors.list file is blank...
Any ideas?