[ubuntu-uk] Boot-problem Ubuntu Live CD

I was lucky enough to come across an old Compaq dual CPU Proliant
server with two great SCSI RAID systems, which I am going to use for
educational purpouses in a school. While trying to boot the Ubuntu
Breezy Live CD I get this on screen:
[170.088629] Input: AT Translated Set 2 Keyboard on isa 0060/serio 0

At this point the machine hangs and the num-lock key stops working.
Anyone with an idea?
The machine works, because when I try to boot it without the CD it
starts and boots Windows 2000.
-- 
Regards,
Hans Poppe
************
System failure is not an option.
It comes bundled with windows.