[Exim] Outlook 2000 and Express

Has anyone heard of any problems with using pop3 to check email with Outlook 2000 (from an Exim server)? When I POP mail using Outlook Express it works just fine with no problems. Then, I try with Outlook 2000 and it connects, disconnects, and doesn't download any mail (obviously, I'm testing this when there is email in the mailbox). I've got the same server settings and everything in both email clients - just not sure what could be causing this to happen.

Thanks,

- Brent