We currently have a single domain, single forest with two sites in which work well. We now have a new site which is giving replication issues. All sites connect back to london via Site to Site VPN
I have installed Active diretory on a new 2008 server (we do have one existing 2008 DC) and it conifirmed AD was installed and prompted for a reboot which completed ok.
I noticed that the sysvol has some files missing so looked at the replication and found the error message below when you try and force replication.