It may be that you have to edit your “Movie” source in your video configuration. Get the context menu up on your “Movies” source and “Edit source”. Then click to the right and hit “OK” to get to next panel. Make sure that the “This directory contains” setting is set to “Movies”. It may be set to “None”. I have found this when transferring files from one device to another or trying to copy files from LE to CE etc.