Hello: trying but unable to do: -w7pro to connect (cat 5e not wireless) to my home C/S w2K network, so that I can access files at a wXPproSp3 pc. I can connect to that same XPproSP3 PC from another XPproSP3 PC, and from my OS X.5 mac (using smb). I can connect from the w7 laptop to a shared directory on the server. I am not able to: -rename the computer name. It is now known as 7laptop.The domain name is not the full domain such as xxx.yyy.gov. What the laptop calls itself is "7laptop.xxx" What if I was able to eliminate the xxx, would that simplify/fix the problem? (But, I can't seem to get rid of the .xxx portion, either.) -not able to join the. The laptop is part of the "workgroup" called "workgroup", but try as I might, I cannot seem to add it to the proper domain here in our home again as an example (not the true domain) "xxx.yyy.gov". I keep getting "the active directory domain controller for the domain ("xxx.yyy.gov") could not be contacted". So I can't change the computer name, nor join the domain, until I'm able to join the domain, a circular issue. There is only 1 domain controller, the w2K server, & everything seems fine there. Advice? Thank you. Links Removed.