Invisible Active Directory

First of all you must have Windows 2000 client on your laptop, secondly because you are in the process of converting Windows NT 4.0 to Windows 2000 AD (Domain Controller) I hope you really mean Migrating to Windows 2000 Domain Controller because when you use ADMT you also required to installed Windows 2000 in Native mode, which in return doesn't allow any non-Windows 2000 ckients to access anything on the windows 2000 Doamin Controller. In any case the information you have provided is not enough to determine the exact cause. Please provide some more information on the type of Clients you are using and is it a Migration or Upgrade or what? word "Converting" doesn't gives us a clear picture. And if you have non-windows 2000 clients are they running Clients for Active Direstory? which you can find on the Windows 2000 Server CD under DSCLIENT folder. All the Best.

Current functional level of the domain is mixed. I am running Windows XP with the Admin Pak installed for .NET

The only computers on the new domain are either Win2k or WinXP. The problem shows up on a Win2k and a WinXP computer both of which were former clients on the WinNT Domain. Most computers will be reformatted to new images but we will have a few that we will have to upgrade. On clean installs using the images the Directory shows up in My Network Places.