Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/pymsn/msnp/base.py", line 106, in _dispatch_command
    handler(command)
  File "/usr/lib/python2.6/dist-packages/pymsn/msnp/notification.py", line 485, in _handle_MSG
    self._client.oim_box.sync(mail_data)
  File "/usr/lib/python2.6/dist-packages/pymsn/service/OfflineIM/offline_messages_box.py", line 247, in sync
    self.__parse_metadata(xml_data)
  File "/usr/lib/python2.6/dist-packages/pymsn/service/OfflineIM/offline_messages_box.py", line 264, in __parse_metadata
    search_by_network_id(network_id)[0]
UnboundLocalError: local variable 'network_id' referenced before assignment