ben@ben-ubuntu:/usr/share/X11/xorg.conf.d$ lsb_release -a; uname -a; dpkg -l | grep nvidia
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 12.10
Release:	12.10
Codename:	quantal
Linux ben-ubuntu 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
rc  nvidia-current                            304.51.really.304.43-0ubuntu1             amd64        NVIDIA binary Xorg driver, kernel module and VDPAU library
ii  nvidia-settings                           304.51-0ubuntu2                           amd64        Tool for configuring the NVIDIA graphics driver