I have been using the media player that installs with Windows 2000 without any problems. Recently, it began to play videos very fast with terrible sound when I would seek ahead in the video. I think something corrupted a codec or something. I can't find media player 6.4 to re-install it so I got 7.1 and installed that. That does the same thing. Short of re-installing Windows, is there anything I can do?