I'm not sure if the two are connected but i suspect they are.

Basically I'm tring to setup Data Protection Manager 2010 on a fresh install of Server 2008 R2 in a SBS 2003 domain. Everything went fine until trying to install agents across the network. Upon clicking add, i get the following error message:

Unable to connect to the Active Directory Domain Services Database.

Make sure that the DPM server is a member of a domain and that the controller is running.
Also verify that there is network connectivity between the DPM server and the domain controller.

ID: 7

As usual (worryingly) the MSDN support for 2010 products is nearly non existant, clicking the error ID simply gives a page not found error. So after 2 days of Googling and trying various fixes (DNS settings, adding permissions to GPO objects, rejoining the domain and many more) I thought I'd ask here in the hope that someone out there may have had this issue before.

Any help greatly appreciated!