Steve,
Thanks for the response.
I have deleted it, thinking it was just a one off, rendered again and uploaded to you tube again, same result.
It did look fine after rendering.
I used the file:upload to you tube to start the render and upload.
There was nothing for me to change on the format.
I think it can be rendered in several formats, which I am short on knowledge on, what would you suggest?
In your opinion, would the speed of the upload have anything to do with the issue?
Thanks for you help
Vic