Windows Media Player multimonitor frustration

[mattg2k4]

I have Windows Media Player 9.00.00.2980, and two monitors on my Radeon 7500.

With some videos I can watch full screen in one monitor, and work in the other. With some videos when they are full screen in one monitor, and I click in another monitor, it will go back to regular size.

I haven't found any pattern linking the video to this occurence, both situations have occured with several codecs and resolutions of the video, but this only happens on a select few movies.

edit: Well, it seems to have stopped happening. I'm not sure what I changed, but it now stays fullscreen on all my movies. Mods can delete/lock if they like.