I managed to reproduce with canola -vv. In xterm I see endless sequence of

1224176543.6121 DBG_E controller:337:get_position() Coul d not get position: org.freedesktop.DBus.Python.atabake. lib.errors.GetPositionError: Traceback (most recent call last):
File "/usr/lib/python2.5/site-packages/dbus/service.py ", line 696, in _message_cb
retval = candidate_method(self, *args, **keywords)
File "atabake/lib/player_session.py", line 321, in get _position
File "atabake/players/oms_backend.py", line 145, in ge t_position
GetPositionError: failed while getting position: () @ F ile "atabake/players/oms_backend.py", line 135, in get_p osition