Thanks, still can't get one to post, must be alien tractor beams over my desk. Could you pm the exact code you use so that I can verify it's a problem with my machine?
I think you were using a youtu.be link instead of youtube.com, that might have made a difference.
I just typed [ video], then pasted in the youtube url from the address bar, and then typed [/video]
(I put an extra space in the [ video] tag to break it so it would show up. Don't add that space.)