KDE does no longer start - DBUS error

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https://bbs.archlinux.org – Hi,so I somehow managed to screw my KDE. I can no longer log in as my standard user, when I enter my username & password into the login-manager, the start process ends with a Window showing 'Could not start D-Bus. Can you call qdbus?'. When I press ok, I land back in the log-in screen.The following is the content of ~/.xsession-errors:/usr/bin/startkde: line 22: /usr/share/config/kdm/kde4-config: No such file or directory Agent pid 2157 startkde: Starting up... startkde: Could not start D-Bus. Can you call qdbus?and at the end of the /var/log/kdm.log:klauncher(2188) kdemain: No D (HowTos)