I installed the Nvidia driver using Ubuntu method (Addition drivers tab under software & updates). It works great so far, but every time Elementary updates kernel system would not boot up. The only way is to boot the previous kernel version, uninstall Nvidia. Boot the current kernel and install Nvidia again. This is a strange behavior omho. My previous distro was OpenSuSE and it never had a problem like that. Does anyone know what to do to fix this?