Since I could find no help, I got rid of this problem by reinstalling. I suspect this issue was created by re-using my /home partition and an older user profile. Removing ~/.kde/ directory didn't fix it, though.
I am disappointed that no one even looked at it for an entire month. -- no way back or overview choice in system settings menus https://bugs.launchpad.net/bugs/573277 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs