Keyboard frozen on BIOS setup

I want to install Linux on my rather old (early 2002) Dell laptop. To do this I need to boot from a CD and so need to change the boot order in setup. Unfortunately when I enter setup the keyboard has become totally unresponsive. I can’t do anything, including exit. The keyboard works fine before I enter setup (otherwise I couldn’t have hit F2 to get there). I also tried using an external keyboard but it acts just the same as the built in. It won’t even boot from a floppy.

Any ideas or am I just going to have to junk it? It is not worth it to me to continue using as it is as it badly needs a clean install of XP or some other OS.

You could try blowing away the boot sector on the hard drive. With any luck, the BIOS will then try booting the CD.

That may be worth a try, I even have an old hard drive I could swap in as a non-destructive test. A project for the weekend I think.