[Dovecot] Problem with namespaces

[Toms Trankalis (SZ)]

Hi,

I'm trying to create Shared folder with subfolders "SPAM" and "NOT_Spam".

Configuration:
namespace public {
  separator = /
  prefix = Shared/
  location = maildir:/vmail/%Ld/Shared:INDEX=/vmail/%Ld/%Ln/Shared
  hidden = no
}

Result I get (is exactly what I want):
Inbox
Drafts
Sent
Trash
Shared
--NOT_Spam
--SPAM

I can select SPAM and NOT_Spam, delete messages etc, but when I select 
"Shared", it shows:
"Mailbox doesn't exist: Shared." As a client I used OE and Thunderbird.

How to get rid of that message?

I'm running latest Dovecot release 1.1.2

/Tom