Direct X Video Acceleration
This is caused from a missing codec that should have been installed with Win Media Player 10 but got lost or damaged. The missing codec is codec75 from microsoft but security issues stop a lot of installations of this type of file.
This might even be caused from using Quicktime or Real as it has also been reported.
If you are using ATI graphics card then you can reinstall the ATI drivers and get the codec that way.
You might also try a third party codec kit and see if it will fix the problem..
K lite codecs is a nice clean arrangements with all the codecs needed for XP.
free with no strings attached:
http://www.free-codecs.com/download/K_Lite_Mega_Codec_Pack.htm
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