I had some difficulty adding printers initially to my print servers but got them set up and promoted them to domain controllers. I need to update some drivers but neither server will let me. I get an error message Operation cannot be completed 0x00000002. I have turned off UAC, turned on the firewall and even demoted the dc on one of them to no avail. I am logged in as the domain admin, which is the same account I used to set them up initially.