I am getting gpo and frs event errors on our domain controller because of another replicated domain controller that went down abruptly quite a while ago. In order to remove it, I accidently followed Windows 2008 instructions and removed it first from the active directory users and computers/domain controllers console. I realized that mistake and then switched to the correct instructions and tried to run the ntsdutil.exe to clean up the metadata for the dead server. This errors out, like it doesn't recognize the server name. Running a dcdiag on our current domain controller indicates that replication is still failing to this non existent server. The article below describes part of my problem, with the 1030 and 1058 errors, and the next article is the technet instructions on running the ntsdutil on w2k3. I'm hoping to get some help here, as I don't want to guess and poke around our one and only domain controller too much. I know, I should have a second one. After I get through this that will be a priority.