Could this be related to https://bugs.kde.org/show_bug.cgi?id=135561 ?
According to the info presented there, the kdelibs package should be probably fixed because of too small timeout. I have similar problem on Dapper manually upgraded to 3.5.5. -- Printer settings in systemsettings/kcontrol don't work any more (Connect to CUPS faild) https://launchpad.net/bugs/66118 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs