Just for the sake of clarity in my case I am not sure if the 'graphical root' is causing this, although I did use:
kdesu kate ..... every know and then. -- The error message: "The process for the system protocol died unexpectedly" triggers many problems, when logged in as graphical root in Kubuntu Dapper https://launchpad.net/bugs/49950 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
