SP-1 will not istall. We get the following in the ldif.log file: Connecting to "system.domain.com" Logging in as current user using SSPI Importing from directory file "C:\Documents and Settings\Administrator.domain\Desktop\Exchange 2007\ Setup\ServerRoles\Common\Setup\Data\update_ResourcePropertySchema.ldf" Loading entries 1: CN=ms-Exch-Resource-Schema,CN=Schema,CN=Configuration,DC=domain,DC=com Entry DN: CN=ms-Exch-Resource-Schema,CN=Schema,CN=Configuration,DC=domain,DC=com changetype: modify Attribute 0) mayContain:msExchResourcePropertySchema Add error on line 1: Busy The server side error is "The FSMO role ownership could not be verified because its directory partition has not replicated successfully with at least one replication partner. " 0 entries modified successfully. An error has occured in the program Any Ideas ?? Thanks.

Have you used replmon (windows support tools) to verify/force replication of the configuration container amongst FSMO role holders?