i am currently testing citrix in my production network. I only have one or two users using it at the moment. My question is that we we have 2 older NT 4.0 Servers running and they are in the mixed mode environment with the win2k server using AD. Is it better for me just to implement a new AD domain with win2k3 and just scrap the older mixed mode stuff?? I am testing Citrix XPe FR3 on a win2k3 box right now. Any suggestions would greatly be appreciated.