I have a Windows 2000 Server (SP4) as a Domain Controller with Active Directory installed. I have an OU (Students) with a Group Policy configured to restrict access for these users. If the said users log onto the domain through Wyse Thin Clients as a Remote Desktop user then the Group Policy is active. If the said users log onto the domain through a Windows XP SP2 client (domain member) then the Group Policy is not active. If they then log on as a Remote Desktop user from the XP machines after domain authentication then the Group Policy is active in the Remote Desktop session.
I have tried putting all of the Computers and Users into a single OU and setting up a Group Policy for that OU but still it will not propagate.
The client PCs in question are lowly specced AMD K2 types with 160MB Ram, 10GB HD, ATI Rage Video and a100Mbit NIC. XP SP2 loaded OK although it is a little clunky.
I have had XP clients working as expected with no issues at HQ.