I don't know what movie you are trying to play, but many don't work in WMP 10. You have to ask those who gave it to you or supply the URL of a web site for us to look at it.
In closing, many codecs might be required. Here's a web site about that. http://www.moviecodec.com
I am trying to play a movie through my media player on my xp (I have ver. 10) and I just cant seem to get any sound
I crossed checked this with another computer and on that one, I just couldnt even see the picture properly (it was just blocks of green pixels)
Can anyone help me to fix this problem?