Having issues applying Local Group Policy to Vista machines using ZCM.

Vista policy is very sporadic, after making a change and incrementing the version I do not get the update, even though the versions on the agent and server match. A reboot will not even download the latest changes.

When I create an XP policy it applies each and every time to an XP machine without fail.

Is anyone else using ZCM with Vista and if so are your experiencing any issues with policies?

Any help/comments would be appreciated.

Thank You