FINALLY figured it out! Go to Programs - ActiveSuck, err, Sync.
Go to Menu (lower right) - Options.
Uncheck all the boxes under MS Exchange (Contacts, Calendar, E-mail etc.) and click OK, OK and then let it do its thing, then click OK upper right corner to get out of there.
(I think your Hotmail and Gmail, etc. accounts should remain unaffected, mine were at least.)
And now all you should have left are the email accounts (POP or IMAP) you set up plus maybe your Picture Mail account (which oddly enough in the TF3D view just shows as blank, it only displays "Sprint Picture Mail" when you click on the Inbox, at least on mine).
