[imp] cyrus imap and servers.php "namespace" option

[Liam Hoekenga]

We're bringing up some cyrus servers (migrating from UW), and I've set 
the namespace to "INBOX.".
To create new folders, I need to specify the "INBOX." prefix (eg 
"INBOX.test").
I'm also unable to delete folders - I get..

     The folder "horde" was not deleted. This is what the server said: 
Mailbox does not exist

Any suggestions?  Is this the expected behavior?

Liam