I'm new to OS X Server having just got a Mac Mini Server to play with as a toy for home. Things have gone pretty smoothly after one false start that involved me doing a clean reinstall of the system. One niggle I have is that when I try to start up Server Preferences or Workgroup Manager there is a long delay with the application screen grayed out before it becomes responsive and works. This delay can be about a minute but after that it works fine. Interestingly, Server Admin does not have this problem. This sounds very much like misconfigured DNS, but DNS seems to be working fine with forward and reverse DNS for the primary zone, and external resolution working with no problems, Also the 'changeip -checkhostname' command gives it a clean bill of health. One other symptom that may be relevant is that initial access to the User and Group information held in Open Directory takes a while to happen, but then switching from user account to user account works as I'd expect. Any ideas on what could be causing this and how to put it right?