I have upgraded my PDC to 2003 server. It has taken me into the Active Directory installation wizard but I am not sure which option to choose. For the sake of argument my current domain is just "domain". No .com, .local or anything running off my BDC's at the moment. Do I choose "Domain in a new Forest" or "Domain tree in a existing forest"? I just want to still have my same domain and log into it.