I have a desktop AMD processor, Nvidia graphic card computer with Ubuntu 12.10.
I was having many problems such as no flash video from youtube, very slow computer mainly when browsing the Internet.
I searched the net and came to the conclusion it might be a graphic drivers problem, so I installed the Nvidia Drivers.
But the result is now a desktop with a resolution of 800 X 600 which I cannot change.
Uninstalling the Nvidia drivers did not help, nor it helped to install linux-headers-generic, linux-source.
My Xorg.conf file has an entry Section Monitor whre the HorizYnc is set to 28.0 - 33.0 and a HorizSync set to 43.0 - 72.0
Under system configuration, under screens it does not detect my monitor, it detects a "Laptop"...
Any help is welcome, as I have already done many things with no luck.