I'm using ubuntu 10.10 and until about 3 days ago rhythmbox worked fine but now when I start it, it opens, then after 4 second it crashes.
When running it from terminal I get this:

~$ rhythmbox
(rhythmbox:27420): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** Message: pygobject_register_sinkfunc is deprecated (GstObject)

(rhythmbox:27420): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed
Segmentation fault

and then rhythmbox closes.
What to do? =\

Edit: Disabled most of the plugins and it's not crashing now, but i still get when running from terminal

(rhythmbox:27420): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed ** Message: pygobject_register_sinkfunc is deprecated (GstObject)

(rhythmbox:27420): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

should I worry?