Windows 2000 Professional

Over the weekend I had to change the domain name of my main server. I had another server that I set up under the correct domain, then joined my main server to this domain. Now, when my users try to login on a Windows 2000 professional machine, it just sits there with the mouse cursor. I can CTRL-ALT-DEL and logoff just fine. If I login with an administrator account, it works just fine, the desktop loads, everything works. If I give the users admin rights to my domain, everything works justfine. Can anyone help?