Do what I told you, close down LW. Then open it up again. If necessary restart your comp to make sure the changes have taken effect.
Whilst LW is closed, go to your music or shared folder. Select one of these WMA files. Go to File>Properties, etc. & change to WMP to open the file. Then restart the computer. Now you should find the changes have taken effect.
You are using WIndows right? If you're using mac then the instrutions are different.
You need to see this:
http://www.gnutellaforums.com/announ...?s=&forumid=29