system hangs on shutdown

[gold_finger]

Could just be an issue with live CD on older computer like that.  (Is it spitting out CD and then hanging?  Or is it just hanging and not spitting out CD?)  After shutting down with CD, wait until it's done and looks like it's frozen -- then hit the enter key on keyboard.  Wait another 5-10 seconds if doesn't work first time, then hit enter again.  That's how it works on some computers, so see if applies to you.

I'd be very surprised if you saw that happen once installed -- highly unlikely!  I'm fairly certain that it's just an issue with booting from CD on older system.