Hi
i have read many threads here regarding the unread mark question, but i am a little bit unsure about the conclusion.
Some say, that the Client (desktop.dsk) maintains the unread marks and syncs it with the DB on the server (does 6.x with desktop.ndk the same?).
From 6.0.3 there is a property in the DB to replicate the unread marks.
The question is…which server (admin, home) is maintaining the unread flags or initianing the replication (e.g when i read a mail on server A, how does the replicated flag move to Server B) ?
Thanks for any help in advance
Péter
Subject: RE: Knowledge Collection: Read and Unread Marks in Notes/Domino
And there is an article in The View journal (March/April 2004) by Bill SPencer(www.eview.com)
From the Inside Out — Understanding Unread Marks Replication in Notes/Domino 6.5
by Bill Spencer
Topic(s): Administration, Notes Client, Replication, Release 6.5
from THE VIEW, March/April 2004
Prior to Notes/Domino releases 6.03 and 6.5, unread marks are not part of the database information that is exchanged during replication, and the mechanisms to keep unread marks synchronized across users’ mail replicas are not able to achieve 100% success. The new unread marks replication feature in releases 6.03/6.5 changes all that. In this article, the implementer of this new feature takes you on a behind-the-scenes look at its architecture, explains its behavior, and provides insight on how it affects performance. For administrators of earlier releases, there’s a thorough explanation of unread marks prior to release 6.03/6.5 that will help in understanding when unread marks are working as designed and when they can be improved.
JYR
Quebec,Canada
Subject: RE: Knowledge Collection: Read and Unread Marks in Notes/Domino
Thanks alot 
Subject: RE: Knowledge Collection: Read and Unread Marks in Notes/Domino
Did the two main ones in the Knowledge Collection help?
The Architecture of Unread Marks in Lotus Notes [# 7002920]
Setup and Details on the Enhanced Unread Functionality Introduced in Notes/Domino 6.0.3 and 6.5 [#1140018]