I have just deployed SBS 2008 Standard and am able to do DNS Queries against the internal DNS Server, however, none of the clients are able to collect a response.
I have checked the Firewall configuration, and DNS is allowed through, and I checked the DNS Configurations as best I could.
I can't test with domain-joined PC's as this is a new deploy and I can't access http://connect.
Other services work, I set up remote Workplace access and tested it and RDP earlier from a remote location. Also, Exchange is able to send / receive mail.