I just got an error message when trying to look at system files as root using Konqueror:
DCOP communications error
There was an error setting up inter-process communication for KDE. Authentication rejected, reason: None of the authentication protocols specified are supported and host-based authentication failed. Please check that "dcop server" program is running.
When I checked, I got:
1003 18998 0.0 1.7 21756 8828 ? S 05:44 0:00 dcopserver [kdeinit] dcopserver --nosid
I found a thread that might pertain to this problem, but don't know what to make of it. It's over my head: