HELP: Killing X

[Blake Carlson <blake-carlson uiowa edu>]

Hey Everyone -

I was messing with my XFree86 config and managed to hang X pretty bad. 
I can't use ctrl+alt+bksp or switch to another virtual console.  The
keyboard lights don't work either.  

I can still log in from ssh and su, but I don't know what processes to
kill off or restart.  I've had this problem a few other times, so I
guess it's time for me to break down and learn how to rescue my machine
other than a reboot. Plus, I don't want to loose my 36 days of uptime!!!
(Important bragging rights around here.)

Any ideas -

Blake Carlson (blake-carlson@uiowa.edu)
ECE
University of Iowa