HTML5 video not displaying in preview


I'm trying to add an html5 video linked to my dropbox account. I've changed the linked file from =0 to =1(raw format) and the video imports into studio just fine but won't display in preview..

Any ideas why the file won't load in preview? Am desperate.

Thank you

EDIT: It's only not displaying in Safari

You have this thread already in the help section, please don't repost help posts in multiple threads. Having said that, have you checked your Dropbox settings to be sure that things are viewable by the public?

Is it a free or paid Dropbox account? Free dropbox accounts don't support video streaming.