You need to be more specific. Are you talking about videos through the web browser? Videos that are on your device? Videos that you take with your camera? YouTube? Flash?
I had that problem too and it fixed when I clicked the lower left button to browse videos by album instead of date. Then I viewed a video from an album which worked. After that, when I went back to view by date, they worked.
I had that problem too and it fixed when I clicked the lower left button to browse videos by album instead of date. Then I viewed a video from an album which worked. After that, when I went back to view by date, they worked.