On a Windows Vista-based computer, you delete a picture in the Picture Library in Windows Media Center. The picture thumbnail still appears in the Picture Library. The picture thumbnail appears in the Picture Library until you exit and then return to the Picture Library.

You point to a taskbar button in Windows Vista. If the content of the window is a video that is running in Windows Media Center, the thumbnail does not show the actual running video. Instead, the thumbnail may only show a static image that is a “snapshot” of the video that was playing when the window was minimized.

In some cases, the thumbnail may be black. Or the thumbnail may be white with a small green icon in its center. Similar behavior occurs when you use Windows Flip 3D view.

For example, you may experience the following behavior with thumbnails for video that is playing in Windows Media Center:

• When you play a video in full-screen mode, and then minimize the Windows Media Center window, the thumbnail view may be black. Or the thumbnail may be white with a small green icon in its center.
• When you play a video in full-screen mode, and then minimize the Windows Media Center window, the Flip 3D view may be black. Or the thumbnail may be white with a small green icon in its center.
• When you play a video in windowed mode, and then minimize the Windows Media Center window, the thumbnail view is a static image of the video.
• When you play a video in windowed mode, and then minimize the Windows Media Center window, the Flip 3D view is a static image of the video.

This problem occurs even though the system supports and is using Windows Aero.

The following problems may occur in Windows Vista:

• Microsoft Windows Explorer does not display the thumbnail for MPEG2 format video files when you open the video folder.
• Microsoft Windows Media Center does not display the thumbnail for MPEG2 format video files when you open the video library.
• When you right-click a MPEG2 format video in the Windows Media Center video library and then click Video Details, you receive an error message that resembles the following:
  

  Unable to display video thumbnail

  Windows Media Center is unable to display the thumbnail for this video.

Note: This problem does not affect how the MPEG2 file plays.

After you copy an image that is in a RAW file format to a computer that is running Windows Vista, the image does not appear in Windows Photo Gallery. Additionally, you may be unable to view thumbnail images of the picture by using Windows Explorer.

The thumbnail representation of a file may not be displayed correctly in Windows Vista.