OK, so this problem has only just occurred, and I have to say, I've never encountered this before. Basically, WMP12 will stop playing a playlist once all tracks (or videos) have played once. Even with the Repeat option on, the playlist only plays each file once, then all the playlist files are grayed out, and you can't skip back or forward to another track/video. As I've said, I've never had WMP do this, ever. It also seems that if you double-click a track the playlist, it works. If you use the Skip Forward/Backward button, then they get grayed out. Very odd? So my question is, what the HELL is going on? See attached JPG and look at the playlist.