Just goes to show, you never can tell. I've managed to fix this now - it was a crappy bios problem.
The question does remain why did Etch survive when nothing else did including FC5 and Sid, but there you go. Close this please. -- System locking up, seemingly at random. https://launchpad.net/bugs/49050 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs