I recently added a second monitor to my set up. However, when I enable the
second monitor, Windows Media player can't play video files. The progress
bar moves across the bottom, as if it is playing the file, but no sound or
picture is displayed.
Does tweaking video hardware acceleration settings help:
http://zachd.com/pss/pss.html#vdriver
?

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Speaking for myself only.
See http://zachd.com/pss/pss.html for some helpful WMP info.
This posting is provided "AS IS" with no warranties, and confers no rights.
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>I recently added a second monitor to my set up. However, when I enable the
> second monitor, Windows Media player can't play video files. The progress
> bar moves across the bottom, as if it is playing the file, but no sound or
> picture is displayed.