Hi, i am relatively new to windows server 2003 and i'm studying for an MCSE. I have set up a 2003 machine as a new domain controller.. and have two other machines (all connected via switch), that i would like to join the newly created domain. All machines can ping each other but when trying to join the 2nd and 3rd machines to new domain, its gives error message unable to find domain controller abc.com.. obviously theres a problem with the active directory setup on domain controller, can anyone advise on some obvious places to start looking to try get AD up and running?? cheers guys