We have recently started to upgrade our workstations from windows 2000 pro to XP pro (sp1a). Now we are unable to "manage" XP computers from a workstation that has also been upgraded. We use this feature to elevate local rights when needed to run certain applications. Now it says that the "Local users and groups" is "access denied". This is the only feature under computer management that has a red "x" on it. We are logged in as admins when trying to perform these functions. Here's the twist, when I log into a Windows 2000 box as "administrator" and try to "manage" another computer (xp or 2000) I am able to make changes to the local users and groups. When I log into an XP computer as "administrator" and manage a 2000 box, it's fine. If I do the same thing to an xp box I get access denied. We've searched every avenue we can think of. Has anyone else had this problem or have any ideas?