Just installed Ubuntu 12.10, I has 1024x768 resolution at first, than I add PPA
sudo apt-add-repository ppa:xorg-edgers/ppa
sudo apt-get update
and install driver
sudo apt-get install nvidia-current nvidia-settings
now I have 640x480 maximum. How do I fix this? I'm newbie in Ubuntu, also not native english speaker, sorry for poor language and halp me, please.