I have tried to change the role as per directions in preparation to run\nadprep. I would prefer all roles to be on one machine for ease later. There\nis only one left on a "secondary" machine and that is the Schema master. I\nselect the correct Server using the "Change Domain Controller" option and\neverything appears okay in the MMC. I go ahead and force replication.\nReplication appears to be taking place correctly. When I go back to the MMC\n(even 24-48 hours later) and click on the Active Directory Schema, the\nserver name changes back to the old. I also notice that when I click on the\n"Operations Master" option the "Change" button is greyed out. Any ides would\nbe very helpful.