outlook 2003, word 2003. when a user tries to send an e-mail in outlook, there is a message: the messaging interface has encurred an unknown error. please restart outlook if problem persists.
restarted outlook, repaired office-> got same message. reinstalled outlook. got same message. tried installing MS patch from site, got same message. no hardware changes, no other software changes. message started today. cannot send e-mails.