Wow i thought i was the only one with this problem. I am getting the same thing. In the thumb nail you see the whole picture, but when you open it, half is grey. Second, today i took a movie of a helicopter in the air. When i played it back, it was OK. A few moments went by and a friend wanted to see it. I went to gallery and touched the thumb nail. When the picture opened i saw the large circle with the arrow. I touched the center and the movie started to play. About thirty seconds went by when all the sudden it stopped and a notice came up saying. This video cant be played. Whats going on?