Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/papyon/msnp/base.py", line 108, in _dispatch_command
    handler(command)
  File "/usr/lib/pymodules/python2.6/papyon/msnp/notification.py", line 566, in _handle_UBX
    contact._server_property_changed("current-media", cm)
UnboundLocalError: local variable 'cm' referenced before assignment