[Modus] Netscape 4.7 issues

[Jesse]

We have a client running Netscape 4.7 on a Mac for a domain that we host on Modusmail .  They are running into an interesting issue when trying to check their mail.   If they setup their mail client for pop3 it tries pops up a window that says "Password for mail user [EMAIL PROTECTED]" (Pop3.kathexisdesign.com is the incoming mail server) and rejects the password.   However if she changes it to IMAP it pops up a window that says"Password for IMAP user [EMAIL PROTECTED] on pop3.kathexisdesign.com" and then checks her mail just fine.   At first I thought this was something just on her system, or that she was having an ID 10 T error, but I was able to duplicate this issue on my XP workstation using 4.7 however Netscape 7 works fine in either pop3 and imap settings.   I'm fine with chalking this up to yet another Netscape glitch but I am curious if anyone else has seen this, or knows of a cause for this.