Hi All

I have downloaded load of movies in MP4 format and they have all worked without any problems.  Recently I have downloaded 3 movies and during play back a error message is displayed on the TV "Unsupported Content".  The movies play absolutely fine, audio and picture quality is 100% fine.  How can you remove the "Unsuppoted Content" message as it is constantly being displayed?  Is there a "Back" button, like a Sky remote?