[Dovecot] Problems reading mbox

[James Brown]

I'm having problems getting dovecot to read my mbox file. I have  
turned on mail_debug. Log says:

Jul 28 11:03:20 Bordo-Mail-Server dovecot: Dovecot v1.0.rc2 starting up
Jul 28 11:03:36 Bordo-Mail-Server dovecot: pop3-login: Login:  
user=<jlbrown>, method=PLAIN, rip=192.168.1.10, lip=192.168.1.9
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown): Effective  
uid=501, gid=501
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown): mbox: data=/ 
Applications/4DWebSTAR/MailboxServer/Mail_DefaultSite/Mailboxes/ 
jlbrown/INBOX.mbox/:INDEX=/Applications/4DWebSTAR/MailboxServer/ 
Mail_DefaultSite/Mailboxes/jlbrown/INBOX.mbox/mbox.index
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown): mbox: INBOX  
defaulted to /Applications/4DWebSTAR/MailboxServer/Mail_DefaultSite/ 
Mailboxes/jlbrown/INBOX.mbox/inbox
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown): mbox: root=/ 
Applications/4DWebSTAR/MailboxServer/Mail_DefaultSite/Mailboxes/ 
jlbrown/INBOX.mbox, index=/Applications/4DWebSTAR/MailboxServer/ 
Mail_DefaultSite/Mailboxes/jlbrown/INBOX.mbox/mbox.index, inbox=/ 
Applications/4DWebSTAR/MailboxServer/Mail_DefaultSite/Mailboxes/ 
jlbrown/INBOX.mbox/inbox
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown):  
mkdir_parents(/Applications/4DWebSTAR/MailboxServer/Mail_DefaultSite/ 
Mailboxes/jlbrown/INBOX.mbox/mbox.index/.imap/INBOX) failed: Not a  
directory
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown): Couldn't  
open INBOX: Internal error occurred. Refer to server log for more  
information. [2006-07-28 11:03:36]
Jul 28 11:03:36 Bordo-Mail-Server dovecot: POP3(jlbrown): No INBOX  
for user top=0/0, retr=0/0, del=0/0, size=0

In dovecot.conf my mailbox location is:

default_mail_env = mbox:/Applications/4DWebSTAR/MailboxServer/ 
Mail_DefaultSite/Mailboxes/%u/INBOX.mbox/:INDEX=/Applications/ 
4DWebSTAR/MailboxServer/Mail_DefaultSite/Mailboxes/%u/INBOX.mbox/ 
mbox.index

Contents of Applications/4DWebSTAR/MailboxServer/Mail_DefaultSite/ 
Mailboxes/jlbrown/INBOX.mbox/ are:

inbox	(created by dovecot)
mbox
mbox.index
mbox.info

Any suggestions as to what I'm doing wrong?

Thanks,

James.