Updated my i5 to ios7. Everything seems to be working normally except when I go to the voicemail screen and press Greeting (to confirm settings) usually nothing happens. The screen seems to freeze. On occasion when I can get in to the greeting screen, when I test to confirm I still have my custom greeting, it won't play the greeting. Just freezes. The greeting is still there (people hear it when they call) but I'd like to clear this up. Tried turning it off then on, and even tried resetting (by holding the home and off button) but its still not behaving properly. I've played with ios7 enough over the past few days to believe there are no other issues. Thoughts? Thanks.