I found a bug report that seems to be common for people migrating from 11.04 to 11.10: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/811441
Apparently, the changeover from /var/run and /var/lock to /run and /run/lock screwed up things. For some people, the fix described in comment #9 seemed to work: https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/811441/comments/9
Will try that tonight and report on that.
Yep, worked for me. My Kubuntu is working again. This was basically the same fix that Chris came across: http://uksysadmin.wordpress.com/2011/10/14/upgrade-to-ubuntu-11-10-problem-w... Though I think, that step 7 should read like this instead: ln -s /run/lock /var/lock Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cs.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174