I just got a SE S710a, and have been trying to d/l both 3GP, and MP4 videos through the phone. when I attempt the d/l, it comes up with a message that states that the type of video is not supported by the phone. However I still d/l the file. When try to play, it states that cannot play the selected file. The funny thing, is that I d/l a redvsblue video to my computer, then transfered to my memory stick, and the phone plays the video perfectly. What am I doing Wrong?