Have you been getting random crashes on bootup of Ubuntu 13.04 or Mint 15? Well heres a possible answer. The stock kernel has had some modifications done that have caused issues that I believe mainly affect Nvidia graphics card users. Upgrading the kernel has totally solved all those issues from me, in this video I show how to do a kernel upgrade in Ubuntu. Download the latest Non RC kernel from: http://kernel.ubuntu.com/~kernel-ppa/mainline/ Download the appropriate packages for your system, as well as the all.deb file. Open Terminal: cd ~/Downloads sudo dpkg -i linux*.deb Reboot To remove the auto update packages for the old stock kernel: sudo apt-get remove linux-generic linux-headers-generic linux-image-generic You can use Synaptic Package manager to remove old kernels. sudo apt-get install synaptic Wallpaper: http://quidsup.net/?i=fantasy_cg_art_2-wallpaper-1920x1080