dovecot - Nov 2009 - read() failed with subscription file

Hello Dovecot folks, I have Dovecot running reasonably well against my Postfix
SMPTd. All mail is stored in Maildir format only. In my Thunderbird client I can
see the Inbox, Trash and Sent folders in the Thunderbird pane but no other
directories. I have very many Maildir format directories under my Inbox
directory but I cannot see them in the Thunderbird client. I have the Dovecot
info and debug log runnning with the solitary error message being displayed in
the log when ever I access the Thunderbird client folders pane as stated below.
Particulars follow and please advise, David.

OS: CentOS 5.2
Postfix: 2.3.3
Dovecot: 1.2


Dovecot log: dovecot: IMAP(user): read() failed with subscription file
/home/user/Maildir/subscriptions: Is a directory

On Mon, 2009-11-16 at 09:18 -0600, david at davidwbrown.name
wrote:
> Dovecot log: dovecot: IMAP(user): read() failed with subscription file
/home/user/Maildir/subscriptions: Is a directory
/home/user/Maildir/subscriptions is a directory. It really shouldn't be
a directory, it should be a file. What created it? Anyway, just rmdir it
away.

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