nvidia-installer log file '/var/log/nvidia-installer.log' 
  creation time: Thu Dec 19 09:48:29 2013 
  installer version: 331.20 
   
  PATH: /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin 
   
  nvidia-installer command line: 
      ./nvidia-installer 
   
  Using: nvidia-installer ncurses user interface 
  -> License accepted. 
  -> Installing NVIDIA driver version 331.20. 
  -> Performing CC sanity check with CC="cc". 
  ERROR: Unable to find the kernel source tree for the currently running kernel.  Please make sure you have installed the kernel source files for your kernel and that they are properly configured; on Red Hat Linux systems, for example, be sure you have the 'kernel-source' or 'kernel-devel' RPM installed.  If you know the correct kernel source files are installed, you may specify the kernel source path with the '--kernel-source-path' command line option. 
  ERROR: Installation has failed.  Please see the file '/var/log/nvidia-installer.log' for details.  You may find suggestions on fixing installation problems in the README available on the Linux driver download page at www.nvidia.com.

root@ngn57:~#  apt-get install -y linux-headers-$(uname -r) 
  Reading package lists... Done 
  Building dependency tree        
  Reading state information... Done 
  E: Unable to locate package linux-headers-3.7-trunk-amd64 
  E: Couldn't find any package by regex 'linux-headers-3.7-trunk-amd64'