Can't setup IMAP/POP3 account for a specific user (Exchange 2003)

I have just set up a new exchange 2003 SP2 environment for a small company. I have one user that I am unable to set up a POP3 or IMAP account for. It keeps telling me that the credentials are wrong even though I know I am typing it in right. OWA with the same credentials work just fine. All other users are fine. I have tried putting domain\username in the user name field. I have reset the password as well. As far as I can tell the user has all the same permission as other users that have no problem. Her AD acocunt  has IMAP and POP3 enabled. Not sure what I am missing here. Email internally works just fine.
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Please try, just for this one user, to use DOMAIN\USERNAME as the username, and see if that works.  Sometimes Exchange 2000/2003 gets hung up when just using the username.
greywindAuthor Commented:
Tmeunier, thanks for your reply/suggestion. I have already tried that.  
I see this now. I apologize for skimming your question too quickly! After password change, has the user logged off the domain, and back on? If you try from another computer, to telnet to port 110 of the Exchange server, and issue USER username, then PASS password, what error is it giving you?

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greywindAuthor Commented:
I changed the password for the first time yesterday and I believe the user did log back onto the domain but I am not 100% sure. I will definately try your suggestions tomorrow. Thanks for your help.
greywindAuthor Commented:
I shut down and rebooted the users workstation and that did not fix it. I did the telnet test and I am getting ok for the username but "bad username or password" for the password. This is intresting because the password works for owa and network login. Any reason why this would be?
Have you looked at kb236032?  You may need to do DOMAIN\jsmith\jsmith.

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greywindAuthor Commented:
Haha. I found the solution the same time you did. That worked. Thank you for your help tmeunier. I will be awarding the points to you.
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