Well I’ve always been an admin user and it never appeared before. Very annoying as I switch from edit mode to view the site in another browser tab and it’s distorts the true appearance of the site as public would see it. I don’t see an option to turn it off – had never happened before the upgrade so have never checked for that option but cannot find it now anyway.
Per my originating message: Videos worked fine before this upgrade. Verified error in Firefox/21 and IE/10.

The site as indicated from the error I sent in the originating post is: http://nancyrork.com