I have two music apps on my DroidX: the original "MUSIC" and "Rock Player". I have an mp3 that I used to use for a ringtone before the recent system upgrade. The mp3 plays fine with Rock Player but only plays about one second of music with MUSIC and then stops so it would seem that the app has a problem. Is there a repair function that can be used on the original app or can I delete the original MUSIC app and then reinstall it? If so, how do you suggest? This app does not show up in the Manage Apps list.