Traceback (most recent call last):
  File "/usr/bin/jockey-gtk", line 394, in <module>
    sys.exit(u.run())
  File "/usr/lib/python2.6/dist-packages/jockey/ui.py", line 417, in run
    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/python2.6/dist-packages/jockey/ui.py", line 90, in backend
    self._dbus_iface = Backend.create_dbus_client()
  File "/usr/lib/python2.6/dist-packages/jockey/backend.py", line 631, in create_dbus_client
    obj = bus.get_object(DBUS_BUS_NAME, '/DeviceDriver')
  File "/usr/lib/pymodules/python2.6/dbus/bus.py", line 244, in get_object
    follow_name_owner_changes=follow_name_owner_changes)
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 241, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
  File "/usr/lib/pymodules/python2.6/dbus/bus.py", line 183, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/pymodules/python2.6/dbus/bus.py", line 281, in start_service_by_name
    'su', (bus_name, flags)))
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.