Anyone else having this problem? I originally erased all documents and settings and did an over the air update, after restoring from my backup all my apps, pictures, and settings were on the phone but no music was there and anytime I tried to open the music app it was a blank white screen that would eventually crash. Next I did a restore through iTunes on my computer same exact problem. iPhone was backed up in iTunes beta 4 and restored in iTunes beta 5. As far as I can tell I followed Apple's procedures exactly but this problem persists.