Hello Claudio D.

Unfortunately, not a good suggestion. Mp4 video does not show the first frame and can only be seen gray triangle sign the player. So it's not the flv and mp4 files is a hassle! The WebSite X5 Evolution 11 preview image'm sending attached where it seems that there is something systemic deficiencies in the internal video player. WebSite X5 Evolution 11 I think the program's source code (subrutin video function) is missing the parameters of the preview video player feature! You can also try to detail this program has not been well tested and missed resolve the trouble. WebSite X5 Evolution 11 Unfortunately, the program can not be a preview of the first frame of the video to show the internal video player! It would be nice if the update had an enhanced function could be filled in the near future.

Best regards, Janos K.