[Dovecot] Subfolders with Thunderbird and maildir?

[Andrew Z]

I setup a test dovecot-1.0-0.beta8.2.fc5 and left most of the settings 
as the defaults.  In Thunderbird 1.5.0.8 Windows, when I tried to create 
a subfolder named "subfolder" under INBOX, it showed up as the same 
level a INBOX and with the name "INBOX^subfolder".

I was able to manually create a subfolder using "mkdir 
~/mail/test_manual_subfolder; touch ~/mail_test_subfolder/blah" and then 
subscribing to it.  That's too much work.  :)

Now when I try to create a subfolder of a non-inbox folder, nothing 
happens (not even an error).

Screen shot:
http://img452.imageshack.us/my.php?image=subfoldersthunderbird15ao6.png

The Dovecot system is Fedora Core 5 x86 and an NFS client for /home.
I'm considering switching from Trustix, UW-IMAP, and mbox.  I'm also 
considering changing INBOX to a Maildir (not /var/spool/mail/%u).


Andrew