Mint 14 was running fine until I had the bright idea to apt-get and update whatever was available. Now half the time while booting up the system seems lost in space - nothing but a black screen (after selecting Mint 14 from the dual boot menu). The other half of the time it seems to load OK. Very frustrating! When it does not load properly I force it to power off and back on, hit 'e' at the dual boot menu and delete $vt_handoff, then double quote everything from quiet splash to end of line. Like I said, this works about half the time. Any thoughts??