I recently bought a sansa e250 and its been acting fine until recently. While viewing one of my videos my player froze and wouldn't turn off. But when I reset the player all my videos were gone but it was taking space on the player. I looked for it on the folder in MY COMPUTER but it wasn't there. I also now know that its only allowed to playback 10 minutes of video at a time. If anyone has any advice at all please help!!!