We recently migrated our work environment from a Server 2003 server running Active Directory, DNS, and DHCP to Server 2008. When we did this, something got messed up and now I can't join a machine to the domain without referencing the fully qualified domain name. so, where I used to be able to just say that a machine was part of FOO, I now have to FOO.BAR.COM.
I suspect DNS is the culprit, but I'm not entirely sure. Any suggestions on correcting my setup is greatly appreciated.