Traceback (most recent call last):
  File "/usr/bin/jockey-gtk", line 175, in <lambda>
    trayicon.connect('activate', lambda widget: self.ui_show_main())
  File "/usr/bin/jockey-gtk", line 99, in ui_show_main
    self.update_tree_model()
  File "/usr/bin/jockey-gtk", line 254, in update_tree_model
    for h_id in self.get_displayed_handlers():
  File "/usr/lib/python2.6/dist-packages/jockey/ui.py", line 735, in get_displayed_handlers
    return self.backend().available(self.argv_options.mode)
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name :1.55 was not provided by any .service files