Help! I updated my Iphone 5 to IOS 7 last night. Now, when I try to use any Apple specific apps, they crash. Also, when I open the Music App, nothing happens. The screen just turns white. When I try to open Podcasts, it crashes immediately. Same with the ITunes app. Does anyone have an idea why this is happening? Is it an ITunes problem? All of my other apps work just fine.