diff -ru gst-plugins-base-0.10.30.4/gst/playback/gstplaybin2.c src/gst/playback/gstplaybin2.c
--- gst-plugins-base-0.10.30.4/gst/playback/gstplaybin2.c	2010-10-13 13:24:37.000000000 +0200
+++ src/gst/playback/gstplaybin2.c	2010-11-08 11:02:50.970751000 +0100
@@ -3292,11 +3292,15 @@
     }
   }
   /* delete any custom sinks we might have */
-  if (group->audio_sink)
+  if (group->audio_sink) {
+    gst_element_set_state (group->audio_sink, GST_STATE_NULL);
     gst_object_unref (group->audio_sink);
+  }
   group->audio_sink = NULL;
-  if (group->video_sink)
+  if (group->video_sink) {
+    gst_element_set_state (group->video_sink, GST_STATE_NULL);
     gst_object_unref (group->video_sink);
+  }
   group->video_sink = NULL;
 
   if (group->uridecodebin) {