Exiting from X either via ctrl-alt-backspace or the "logout"
menu, causes X to hang.... The led on the monitor that
indicates that it is receiveing video signals goes from
green to orange indicating that it is no longer receiving
any video signal.  I can ssh to the machine from another
machine and open a xterm and everything looks ok.... X isn't
running though.  (X had been started from the console via
"startx" and I couldn't switch back to the console via
ctrl-alt-f1.)  The first time I tried rebooting the system
via "shutdown -rf now",  which just hung the xterm so I opened
another xterm via ssh, killed the shutdown and old ssh processes
and did /sbin/init 6 which worked and the system rebooted.  The
second time, "shutdown -rf now" worked and the system rebooted.
(Video card is a Permedia 2 PCI. MB is a IWill DBL100, with a
single 400MHz PII and 128MB.)  The system had been running
RH 6.1 without any problems.

I just rebooted, did startx again, waited for gnome to start up
and then did ctrl-alt-f1.  The same thing happens.... ie X hangs
just like in the other cases.  (As long as I don't try to leav
X, things seem to work ok.  I was able to edit a couple of files
with emacs and open a couple of nxterms.)