I've used LW for a good while and all things have played alright, before. It started not to play anything a few days back. I've tried changing my default player to somthing else. That failed! The files are in MP3 format. The sound is fine on my computer and I don't know anything about a CD playback. I didn't preview any tracks before downloading them. Both downloaded and added files won't play. Please help me!!! Thnx!