1
Issues with the pre-installed drivers are rather common in Ubuntu 12.10.
I haven't tested them myself (because I don't have an nVidia card), but the drivers from X Updates seem to solve those issues for a lot of people.
You can install the drivers by executing the following commands from a terminal:
sudo apt-add-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update
sudo apt-get install nvidia-current nvidia-settings
2Looks like a problem with the video driver. Which GPU are you using? – Dennis – 2013-02-14T14:30:48.410
01:00.0 "VGA compatible controller" "NVIDIA Corporation" "GF114 [GeForce GTX 555]" -ra1 "NVIDIA Corporation" "Device 0958" Kernel driver in use: nouveau Kernel modules: nouveau, nvidiafb – stevenmc – 2013-02-18T12:27:28.420