No, I've tried this again with the same result - my user cannot add/edit/remove roles nor add/remove permissions to any objects. I added the "Virtual Machine Power User (sample)" role to an ESX4 host which resides in a cluster, in a datacenter, running on a vCenter 4 instance.
I don't believe that this is triggered by logging into vcenter with two different usernames.
So you are running vcenter on windows xp and you are also launching the vc client on the same machine? Can you also list the local groups that userX belongs to?
Cameron J. Smith
System Administrator, Purdue University