Bob, Maybe the "bad" system isn't honoring the setuid bit. What are the outputs of the commands df ~ldm/bin mount > Looks to be set correctly... it matches the server that works. > > -rwsr-xr-x 1 root wxdev 131785 Feb 6 15:13 ldmd Regards, Steve Emmerson Ticket Details =================== Ticket ID: ISK-264773 Department: Support LDM Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.