If you are still experiencing this problem, could you try running each of: kcmshell fonts kcmshell colors kcmshell icons kcmshell style kcmshell kthememanager kcmshell kwindecoration kcmshell kcmgtk-xdg
from the command line and see if any of them crash? -- systemsettings crashes when trying to open "Appearance" https://launchpad.net/bugs/56051 -- kubuntu-bugs mailing list kubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/kubuntu-bugs
