Windows video volume issue

It doesn’t seem to matter what player I use (Media Player Classic, BSPlayer, Windows Media Player 9), if I change the volume during video playback and jump to a different location in the video, the volume resets to the maximum. It seems to have started when I recently installed SP2 and WMP9, but I’m not sure. Does anyone have any easy ideas for a fix?

Not to be a wise guy, but what about just not changing the volume during video playback and jumping to a different location in the video?