A new day, new challenges to overcome.
I went out early with the new GoPro 3 Black mounted on the H/Bars. Took about 40 or 50 minutes of vid. Back home and my first attempt using Windows Live Movie Maker (WLMM) went great. Each tool that I tried got easier and easier to use, I was loving it so much that I ended up with a 15 min vid with captions to keep viewers informed as to where and what. I was impressed with the tool and my effort all 2 hours of it! Long story short couldn't save it and lost the lot.

Still had the raw vid on camera so in desperation just grabbed 2 min of vid and put it into WLMM did a 30 second edit and it worked a treat, high quality, great, almost as good as the raw vid. Then put it into YouTube and ended with a rubbish quality product, did it again and the same.

Took the same 2 min vid and put it into Vimeo, this is the result. Not as good as the vid that I entered but watchable.
Please note this short vid isn't trying to be a product to show a ride but only a quick test after YouTube frustration.
http://vimeo.com/55192666
EDIT,
Harry sorted The YouTube mystery out, we have to pause the YouTube link when it starts, then go to the little wheel like button lower right, click it and reset 1080HD. Still trying to make 1080HD my default?
[video=youtube_share;H6bPeyBCXQk]http://youtu.be/H6bPeyBCXQk[/video]