Something dumb

Hi! I'm working on a DNS lab for server 2003. I have 2 servers joined to a domain. I just set the second one up as a secondary DNS server. I've done a zone transfer---so far so good. I right clicked on DNS in the console, then clicked on Connect to DNS Server. I type in the computer name, click OK, and I get the message access denied. At the beginning of this exercise, it said to logon to Computer1 from Computer2. For the life of me, I can't remember how to do that. Now I know how Homer Simpson feels all the time. How do I logon to the first computer from the second one? Any and all responses will be greatly appreciated. Thanks.