Uninstalled mail, people, calendar and then reinstalled it. It let me setup my Hotmail account and its working, but when I try to setup my IMAP/Fastmail account and my work exchange account, it wont connect. I guess I'll try Outlook. I don't really care about using Outlook and prefer the Mail, Calendar, People apps, but until they get this fixed, I might not have a choice. Wifi seems to be acting a little weird too, but I did eventually get connected.