I have 3 workstations that when logged in and registered in the zcm zone, can't co-exist. What happens is when workstation 1 logs in and I register it in the domain, it appears in the zcm admin interface. When I log in and register workstation 2, then workstation 1 apparently is replaced in the zone by workstation 2. When workstation 3 is logged in, it replaces workstation 2 in the zone. I'm postulating that the workstations have the same GUID since we use ghost to image our workstations. Is the GUID held in a registry entry? How do I force a guid to change?