My iPhone 4 is on version 5.1.1. I jail-broke it yesterday and noticed my iPod app is completely useless. It plays a different song when I choose one, doesn't play some songs at all, and very few play correctly. I restored to a backup that I made before jailbreaking but it did nothing for the issue. I even reset all settings. Can anyone provide suggestions? Invested a lot of money into my music and would love to be able to use them.