I can play songs using Preview and the Limewire Player; however, when I try to play this same song in "My Shared" folder using WMP version 10, I get "WMP cannot play the file. The player might not support the file type or might not support the codec that was used to compress the file." What's going on? What does the Limewire player know that WMP doesn't? I have downloaded the latest codec files. Thanks!