Please describe the problem:
When I use the edge effect in cheese, its as if a partial thumbnail of the image is overlaid across the top border of the image and repeated.

Sometimes when I combine another effect with edge, such as muave, then even more overlaid images start to flicker on and off over it quickly. Doesn't happen always

Pictures/Video are linked to below.

Steps to reproduce:
1. Turn on Edge effect.
2. Turn on Muave too.

Actual results:
(Normal picture - http://img120.imageshack.us/img120/8720/0004ub2.jpg )

1. Images are overlaid ontop of the normal edge-d picture.
( Example pic- http://img297.imageshack.us/img297/5369/0006xi7.jpg )

2. SOMETIMES even more are put on top, and it flickers wildly.
( Video - http://am49.frih.net/misc/0007.ogg )

Expected results:
No wild glitches.

Does this happen every time?
The edge problem, always. The edge+muave glitch, not always.

Other information:
I have a v4l2-webcam, 64-bit Ubuntu 7.10, a dual-core system, Nvidia 8600M GS, and the latest stable gstreamer compiled from source installed.

Here is what the console shows from "cheese -v" when I run it:

****@****:~$ cheese -v

(gnome-video-thumbnailer:21498): GLib-GObject-WARNING **: cannot register existing type `GstRTPBin'

(gnome-video-thumbnailer:21498): GStreamer-CRITICAL **: gst_element_register: assertion `g_type_is_a (type, GST_TYPE_ELEMENT)' failed
** Message: Error: Could not determine type of stream.
gsttypefindelement.c(735): gst_type_find_element_activate (): /play/decodebin0/typefind

totem-video-thumbnailer couln't open file 'file:///home/****/.gnome2/cheese/media/0007.ogg'
Reason: Could not determine type of stream..

** (cheese:21495): WARNING **: could not load /home/****/.gnome2/cheese/media/0007.ogg (application/ogg)

Detected webcam: HP Webcam
device: /dev/video0
video/x-raw-yuv 160 x 120 num_framerates 6
24/1 20/1 15/1 10/1 5/1 1/1 
video/x-raw-yuv 176 x 144 num_framerates 6
24/1 20/1 15/1 10/1 5/1 1/1 
video/x-raw-yuv 320 x 240 num_framerates 6
24/1 20/1 15/1 10/1 5/1 1/1 
video/x-raw-yuv 352 x 288 num_framerates 6
24/1 20/1 15/1 10/1 5/1 1/1 
video/x-raw-yuv 640 x 480 num_framerates 6
24/1 20/1 15/1 10/1 5/1 1/1 
v4l2src name=video_source device=/dev/video0 queue-size=2 ! video/x-raw-yuv,width=640,height=480,framerate=24/1 ! identity