iPhone 4S Mail All Inboxes shows 4,294,967,289 unread mail messages
1. On my iPhone 4S in the Mail app, if I go into the Mailboxes and look at my Inboxes it shows 4,294,967,289 mail messages (see screen shot). This number is clearly incorrect, as I don't have any unread emails, and my accounts don't have anywhere near this number of emails. Of course my mail icon on the home screen doesn't show anything because the number is (incorrectly) too large.
2. On my iPad 2 in the Mail app (with the same iCloud and gmail accounts all synced up), if I go into the Mailboxes and look at my Inboxes it shows no unread mail messages, which is correct. If I get a new message, then it will show the number of unread messages accurately (1 or 2 or whatever).
Has anyone seen this problem? I deleted all my mail accounts in the iPhone and added them back again, but that did not correct the problem. I am up to date on all software as well.
Thanks for the help.
iPhone 4S, iOS 5.1.1