Does anyone else here sync emails and calendars with Exchange? I just noticed that my Exchange calendar widget does not show any of those appts, and that's where most of my appts reside. Sigh.
Under calendar, select calendars on the bottom of the screen. Your exchange account should be listed there. If not, go to settings->mail->accounts->add new account if not listed. You could also try and delete the current account and re-add it. Hope that helps!
also, in the mail settings under accounts, select your exchange account and verify the calendar widget is slid to on.