Background video not loading

Hi.

I have been having continuous problems with the video background in a color section not loading.

Here’s a recent example: http://www.beyondtheillusionofgravity.com

In this case the video is from VIMEO. I’ve tried switching to a YouTube video, witch works fine. How come there’s a difference? And how come it worked but stopped working?

Hope for some golden nugget of wisdom :-)

Jesper