dovecot - Nov 2004 - 1.0-test55, threading does not include new messages

Hello.

The dovecot server is 1.0-test55, with maildir storage. The MUA is pine 
4.61, using thread sort.

When I open a folder containing new messages (delivered through 
procmail), the threads do not include these messages. I have to close 
the folder, then open it again to make the threads complete.


Thanks in advance.

-- 
Nicolas