I upgraded to iOS4 2 days ago and everything has been alright except that every so often I get a pop-up notification telling me I have the "incorrect exchange password: and it tells my to type my exchange password into the phone. It's really annoying and I never set up an exchange account. I'm not a business user and I don't get why it pops up. Never used exchange before. I have a 3g Does anyone else have this issue? I'm going to try to post a link to the picture.