"Patrick" == Patrick O'Callaghan pocallaghan@gmail.com writes:
Patrick> The most likely explanation is that there is a lock file Patrick> lying around which shouldn't be there. Rebooting might Patrick> get rid of it, or you could poke around in /tmp.
I've already re-booted, and cleared /tmp of stale stuff. And /var/tmp is empty, so it's not that either.
I searched on google, and there's a lot of hits on this kind of error, and several cures claimed (but they don't work on my system).