I've also resolved it. The particular files involved differed from those mentioned by David Knippers and newsun.
The solution was: sudo chown all files mentioned by David Knippers to your own username. My settings still would not save. Next sudo chown -R username ~/.kde/share/apps kate sudo chown -R username ~/.kde/share/apps katepart This removes all settings files from root ownership and readonly status for other users. I can't see that there's ever a good reason why files in ~/.kde should be owned by root, so I was happy to chown everything. I'd be interested to know if all users (like me) use or have used English locale settings set to something non-standard (ie not US) and/or had the problem with borked text in the KDE menu. See https://bugs.launchpad.net/ubuntu/+source/kdebase/+bug/135084 -- Kate (?and Quanta and KDevelop user preferences) do not save https://bugs.launchpad.net/bugs/173283 You received this bug notification because you are a member of Kubuntu Team, which is subscribed to kdebase in ubuntu. -- kubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs