My Pre is synced to my Outlook account at work through our Exchange Server (2003, SP2). It had worked perfectly with e-mail, contacts, and calendar since we first bought our Pre. Then, on Monday, it stopped. No e-mails come through or go out. Our calendar says "You do not have calendars enabled for this account", and the contacts show that "0" contacts are synced.
I've tried removing the Exchange account and reinstalling it, but to no avail. It just won't work. Funny thing is, both Google and Facebook appear to be syncing fine.