[CentOS] Update, now can't unlock

Sat May 19 20:18:24 UTC 2007
Peter Crighton <centos at p-cright.demon.co.uk>

I started a yum update this afternoon and there were lots of updates
(182) so I presume it's the 4.5 update.

Now I can't unlock the session with my password!

Any ideas? (no caps lock is not on!)
--

Peter Crighton