idn? gives the status of the front panel (C 0 0 0 ... ), IBIC shows me the 4083 at address 18 (not used on any other equipment). When I have the 4083 hooked up to the network, none of the equipment is listed on Measurement & Automation, although NI Spy shows it sees everything, including the 4083. Without the 4083, other equipment is listed fine. We cannot find the manual, an old program gives me a couple commands to try, but they have no response when I send them to the 4083. Agilent said that this equipment has been "Out of Support" since 1998. Any suggestions?