Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/miro/frontends/widgets/gtk/weakconnect.py", line 49, in handle_callback
    return real_method(obj, *(args + self.user_args))
  File "/usr/lib/pymodules/python2.6/miro/frontends/widgets/gtk/base.py", line 90, in on_hierarchy_changed
    window = wrappermap.wrapper(toplevel)
  File "/usr/lib/pymodules/python2.6/miro/frontends/widgets/gtk/wrappermap.py", line 46, in wrapper
    raise KeyError("Widget wrapper no longer exists")
KeyError: 'Widget wrapper no longer exists'