error in italian

[Aldo]

Distribution: Ubuntu 11.04 natty
Application: Ubuntu Tweak 0.5.14
Desktop: gnome

Traceback (most recent call last):
  File "/usr/bin/ubuntu-tweak", line 110, in <module>
    launcher = TweakLauncher(session_bus, MainWindow())
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/mainwindow.py", line 276, in __init__
    self.get_gui_state()
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/mainwindow.py", line 351, in get_gui_state
    self.set_default_size(*TweakSettings.get_window_size())
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/common/config.py", line 147, in get_window_size
    width = cls.config.get_value_from_key(cls.window_width, default=900)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/common/config.py", line 35, in get_value_from_key
    return self.get_value()
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/conf/gconfsetting.py", line 103, in get_value
    self.set_value(self.__default)
  File "/usr/lib/python2.7/dist-packages/ubuntutweak/conf/gconfsetting.py", line 112, in set_value
    self.__client.set_value(self.__key, value)
GError: Tentativo di contattare il server di configurazione non riuscito. La causa più comune potrebbe essere un demone di sessione D-Bus mancante o mal configurato. Per maggiori informazioni, consultare http://projects.gnome.org/gconf/ (Dettagli - 1: Errore eseguendo il ping al server: IDL:omg.org/CORBA/COMM_FAILURE:1.0).