Traceback (most recent call last):
  File "/usr/bin/sugar-activity", line 21, in <module>
    main.main()
  File "/usr/lib/python2.6/site-packages/sugar/activity/main.py", line 146, in main
    create_activity_instance(activity_constructor, activity_handle)
  File "/usr/lib/python2.6/site-packages/sugar/activity/main.py", line 35, in create_activity_instance
    activity = constructor(handle)
  File "/home/liveuser/Activities/ViewSlides.activity/viewslides.py", line 182, in __init__
    activity.Activity.__init__(self, handle)
  File "/usr/lib/python2.6/site-packages/sugar/activity/activity.py", line 270, in __init__
    self._pservice = presenceservice.get_instance()
  File "/usr/lib/python2.6/site-packages/sugar/presence/presenceservice.py", line 599, in get_instance
    _ps = PresenceService(allow_offline_iface)
  File "/usr/lib/python2.6/site-packages/sugar/presence/presenceservice.py", line 80, in __init__
    self._bus = dbus.SessionBus()
  File "/usr/lib/python2.6/site-packages/dbus/_dbus.py", line 219, in __new__
    mainloop=mainloop)
  File "/usr/lib/python2.6/site-packages/dbus/_dbus.py", line 108, in __new__
    bus = BusConnection.__new__(subclass, bus_type, mainloop=mainloop)
  File "/usr/lib/python2.6/site-packages/dbus/bus.py", line 125, in __new__
    bus = cls._new_for_bus(address_or_type, mainloop=mainloop)
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoServer: Failed to connect to socket /tmp/dbus-QrEJCUS69x: Connection refused
1256498953.308352 DEBUG root: _cleanup_temp_files
