OSX 10.8 Mountain Lion Contacts can't access Active Directory 2003 LDAP

[imonkey]

Hi All,
I've recently upgraded to OSX 10.8 and have discovered that the Contacts Application can no longer access our Active Directory 2003 domain via LDAP. I have confirmed that the exact same settings work for OSX 10.7 and Mac OSX 10.6 which are [generalised to]:

Server: dc01.subdomain.domain.com.au
Port: 389
Searchbase: DC=subdomain,DC=domain,DC=com,DC=au
Scope: Subtree
Authentication: Simple
Username: domain\username
Password: password

If I do a search on the LDAP with these setting I just get a spinning progress indicator. Console doesn't seem to display any errors with contacts.

Does anybody know if there are any workaround to getting 10.8 contacts to read AD 2003 LDAP?

Thanks in Advance