Running Outlook 2003 SP2 in Exchange 2003 SP2 environment, when a user enters an address in the From field to send as another user, it has been changing back to the sender's address when she clicks Send. The Sent items records the user as the sender. This has happened 2 times out of the last 4 or so, so is inconsistent. This is only affecting this one user, not others who so the same thing. Any ideas?