Hi. I'm using AllVideos 3.3 with no modifications. When I try to play an MP4 Video in fullscreen on a Mac (Video is rendered by Quicktime) the non fullscreen version isn't stopped, so the video is played twice at the same time. This happens regardless which browser I'm using - Safari, Firefox, Opera. If you have a mac you can reproduce this even on Joomlaworks demosite demo.joomlaworks.net/allvideos : Start the video, then click on "Dim lights" link for fullscreen version and pause the fullscreen version. You will still hear the sound from non fullscreen version of the video, which seems only be covered by fullscreen and therefore not visible. On Windows with Quicktime everythings works well. Can you help me with this issue. Kind regards, Jens Killus