This just happened tonight with my 4s. It has iOS 5 and a ton of apps on it that took me soooo much time to finally get right. Not to mention all my important appointments, reminders, lists, and notes. I am currently following your instructions and mercifully, it seems to be working. Thank goodness for people like you and forums like this. I was just getting into bed when it happened, but had to get up and do this because it would have haunted me all night! Thank you, thank you, thank you!