It sounds to me like a codec issue. I'm amazed wmp won't play mp3's on its own. Another alternative to save u dwnlding codecs upon codecs, try this app Quintessential Player (awesome program by the way, and free) And it tends to have less problems than wmp. Try it! It plays wma's also. If you're happy with it, make it your default player so it will open if you launch any songs.

I forgot to mention, to make wmp your player thru LW see these threads: http://www.gnutellaforums.com/showth...threadid=12041
http://www.gnutellaforums.com/showth...threadid=21818