I have a user that repeatedly has this issue. A 3 month password change is enforced on the domain, but when the user changes his, Office 2003 will re-ask for the POP account password, even though it has not changed. Entering the correct POP account password causes it to repeatedly fail. If you go and change the POP password and enter the new one, then it is fine.
He's the only one with this issue, but also the only user with both an Exchange and POP account.
Any ideas guys? Thanks in advance :)