[Dovecot] IMAP subfolders

Hi:

I am using dovecot since the first day on my server (so I have no other mailbox formats).

I can't create any subfolders under any IMAP folders. Is this still an issue of dovecot?

In mozilla, the operation is simply ignored. With outlook, you can't even click "Accept" if you select to create a subfolder, rather than a top level folder.

I have Fedora Core 1, and didn't touch anything special in the configuration file (just one line which enabled pop3 and imap). I have seen the list archives but the existing thread about the issue seems to say that the problem is solved. (?)

Thanks in advance for replies

Manuel Moran