Registry not updating
User\Documents & Settings Contains Fdeploy.ini, which holds information about the Folder Redirection status of the current user's special folders.
User\Microsoft\Remote Install Contains OSCfilter.ini, which holds user choices for operating system installation through Remote Installation Services.
For Active Directory–based Group Policy objects, this file contains the version number of the Group Policy object in a line of this form: The version number is the decimal representation of an eight-digit hexadecimal number (a DWORD).
Some of my users point to the new server and work just fine.