qmail: no inbox with IMAP

[Brian Moon]

I installed UW IMAP.  I am using mailboxes.  If I try to move anything into
INBOX on my client, the server responds saying that the mailbox is not a
UNIX mailbox.  Mail is going to ~/Mailbox.  However, either UW or the client
(MS Outlook Express) or both do not recognize Mailbox as the INBOX.  Is this
something related qmail?

Brian.