well, I finally managed to bring linux to it's knees
I was happily surfing, got a phone call and just as the screen saver kicked in I moved the mouse and everything froze.
I could still ctrl-alt-f1 to a CLI but being the newb that I am I wasn't sure what to do so after a little poking around I did su and rebooted
What should I do if it happens again to shut down X (i did delete the /tmp/X0.lock file) but after that I was lost?
Thanks all
mark