"Rob Terhaar" <robbyt at gmail.com>  wrote:
> Also, are you using closed-source video card drivers? Try to switch
> to the open-source version of the drivers (which tend to be slower,
> but more stable)

On that note, make sure you have SSH running so you can log in
remotely, if anything, to do a clean shutdown.  I have had my share of
video problems over the years, and having SSH has saved many an fsck.
-- 
Chad Walstrom <chewie at wookimus.net>           http://www.wookimus.net/
           assert(expired(knowledge)); /* core dump */