Major Keyboard problem

While I was working today, the keyboard suddenly stopped responding. It
wouldn't work for any program, so I rebooted. Still nothing. I notice
that I can use the keyboard to select linux and I can use it to log
into linux, but beyond that it is useless.I am stumped. I would really
like it back because I have some important files on my ext3 partition
that I need to retrieve. Please help!