So I had a weird notification from my T-Mobile account app that stated you should periodically reset your phone to keep it running smooth. I thought it was odd and so I listened and powered my phone off and then on. Didn't think much of it until I got in my car and fired up the music app to listen to some tunes on the way home and to my surprise all my music is screwed up. So I went home and plugged my phone into the computer and all my music is on the sd card but only 1/5 is showing up on the artist page. If I go to the songs tab they all show up and my playlist tab is now completely empty. Re syncing one album via windows media player brings it back even though it says album is already on the device. So pissed wish I had my zune software back... pain free syncing and this kind of **** never happened.