GPMC issues with February Longhorn CTP
Apparently there're some problems with the GPMC in the last CTP for Longhorn. According to the Windows Server Division Weblog:
Likewise, there are some other issues that we already know about (which is why they’re called “known issues”), such as the mysterious disappearance of the Group Policy Management Console and the WDS Transport Deployment role service. Don’t worry – the Hardy Boys and Nancy Drew have been assigned to the case and both items will be back in time for Beta 3...
Eh, whaddya' expect. Its a beta.
More info at: http://blogs.technet.com/windowsserver/archive/2007/02/21/february-2007-ctp-of-windows-server-longhorn-released.aspx