Video without an audio stream does not play correctly in Windows SlideShow in Windows Vista
When you try to play Windows SlideShow in Windows Vista, you may experience either of the following problems:
- You see a black screen when you use a full-screen theme.
- You see a black placeholder where a video is supposed to play.
For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2534516.