Microsoft KB Archive/325771

= Extending Desktop While Playing Video May Cause Problems in Windows XP =

Article ID: 325771

Article Last Modified on 5/29/2007

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APPLIES TO


 * Microsoft Windows XP Professional
 * Microsoft Windows XP Home Edition

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This article was previously published under Q325771



SYMPTOMS
When you try to extend the desktop to a secondary display while Windows Media Player is playing a video on the primary display, you may experience one or more of the following symptoms:
 * Although the sound continues to play, the video may be missing.
 * The video may stop, and when you try to start it again, you may receive an error message, or it may play sound with no video.

These symptoms may also occur when:
 * You try to turn off the extended desktop on the secondary monitor while video is playing.
 * You are using a third-party video playback program other than Windows Media Player.



CAUSE
This problem is caused by a limitation of Microsoft DirectDraw in Windows XP.



WORKAROUND
To work around this issue, use either of the following methods:
 * After you turn off or turn on the extended desktop to the secondary display, quit your video playback program and then start it again.
 * Turn off or turn on the extended desktop before you start the video playback.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.



MORE INFORMATION
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Additional query words: mpeg1 mpeg2 videocd dvd vcd avi dualview

Keywords: kbdisplay kbprb kbui KB325771

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