courier-imap 0.37 not recognizing new directory

["Robert Cates" <robert@kormar.de>]

Hi,

I'm using courier-imap on my Debian 3.0 machine, and I've created a new
directory under my Maildir (along side my .Trash, etc.), but it's not being
recognized.  I recently installed SpamAssassin 3.0.4 which is why I wanted
the .Spam directory.  Also, I cannot get my exim 4.54 MTA to put spam-mail
into the .Spam directory.  Any ideas why?  Permissions/ownership are the
same as .Trash for example.  I've rebooted the machine.  Oh, and neither
Outlook nor Thunderbird (on a Fedora Core 4 machine) will find/show the
.Spam directory.

Any/all help will be greatly appreciated.
Thanks,
Robert