Playbin2.Video is not displayed. Only grey screen is shown.

[Federico Zamperini]

Hi,
	first of all try with gst-launch (or gst-launch-0.10 or whatever 
version of gstreamer you have):

gst-launch playbin2 uri=<uri>

to make sure it's not matter of coding errors.
Then try to stream from the same machine to avoid narrow bandwith or 
routers/firewall issues.
I had a similar problem when the resolution of the image was too high (I 
missed a lot of frames, so the decoder could not reconstruct the frame 
image -- I guess the artifacts you are talking about are the 
"difference" between frames), so check if you can low it down; I had 
successful tests with 320x240, 6 frames/s with h264 encoding on a 512kbs 
connection (actually the used bandwith was around 300kbs).
Hope it helps
Cheers

Federico