-ERR user has no $HOME/Maildir

[Jay]

Hi,
I'm trying to get the qmail pop3d working, and the error message I keep
getting when I am checking mail is -ERR user has no $HOME/Maildir
/home/whoever/Mailbox exists, and I specify  /bin/checkpassword
/var/qmail/bin/qmail-pop3d Mailbox
in inetd.conf
any ideas?