Hi I think Musethemes are fabulous - but I'm obviously missing something and need a solution quickly, as it seems to work for others - all works fine with local video files, but need scalable Background video to work with YouTube. I have latest Muse update on Mac and updated show widget. I've tried the little trick about getting the widget to refresh by selecting a different option in the fly out, then reselecting youtube option again, resave, reexport, no dice. The Youtube video plays and scales beautifully IN PREVIEW, but when you export as html, no browser plays it, blank page. Does the page have to be a certain size or does it have to be hosted online for the youtube clip to play? There don't seem a lot of options to be missing, I've definitely enabled Background video in the toolset etc, please help, I need a reliable, scalable Youtube background option urgently - thanks!