Windows 2003 upgrade issues

[DrWho_64]

I recently upgraded several servers from Windows 2000 Server to Windows Server 2003. The servers are all running however, on some servers (not all) I can't open the Networking properties. Also, 2 of the tabs are gone from System Properties box. I can't even open the Networking properties from the command prompt. I've updated the OS to the latest patches and hotfixes to no avail. This is very strange and I'm having problems finding a resolution to this problem. Has anybody else run into this issue and how do I fix it?

HELP! This is driving me nutz!!!