[imp] IMAP issue with CVS-HEAD

[ES]

Using latest tarball for evaluating purpose 31.11.2003 of framework, 
horde and imp.
SuSE-Linux 8.2
apache-1.3.27-38
mod_php-4.3.1
mod_php-core-4.3.1
latest PEAR modules
Domino R5.012 IMAP and LDAP on same system

Using customized hook-functions for setting fullname and from_addr from 
LDAP-Directory -> OK

The following situation:
IMAP-Login -> OK
Sent folder will be created on first mail sent. -> OK
mail is delivered -> OK
reply to this mail will be mentioned in folder-view (INBOX) with one new 
message.
But when openenig INBOX-folder or Sent-folder no message is displayed in 
the list??

Trying to debug this for about 5 hours but have no clue what happens here.

Help would be appreciated

Greetings
ES