The latest driver in the ubuntu 12.04 LTS repository is 310.14, hope this gets updated to the final version.
You could install nvidia-graphics-drivers-313 from xorg-edgers, I wouldn't recommend the 319 series yet because of the performance results posted on Phoronix.
# sudo add-apt-repository ppa:xorg-edgers/ppa
# sudo apt-get update
# sudo apt-get install nvidia-graphics-drivers-313
//You could upgrade everything else, but if you don't want to, go to your software repositories and uncheck the ppa.
Last edited by ᘜᕟᗃᒟ; 05-10-2013 at 02:04 PM.