Periodically two of our workstations running Tiger will lose permissions to the network share via a NAS downstairs. They don't appear to lose network connectivity, just permissions to modify or change those shares. I'm completely at a loss at this point. I've joined the workstations to the domain, set everything up via IP's rather than relying on DNS resolution, but still have the issue. When they reboot, it goes away for a time. There seems to be no logical pattern. Any help would be hugely appreciated. edit: I have already run Repair Permissions.