Hi,
What happens if you follow the instructions from the troubleshooter and click on the 'Interface not listed' button, as per the instructions listed in the document linked in my previous post:
"If your GPIB board does not pass the NI-488.2 Troubleshooting Wizard, then:
Select the board that failed by left-clicking on its interface name (e.g., GPIB0).
Click on the Help button for more information.
Follow the troubleshooting instructions suggested.
Verify that the GPIB cable is not connected to your GPIB board. If you are using a GPIB-USB-A interface, make sure it is not connected to any instrument.
If your GPIB board is not found, then click on the Interface is Not Listed button for more information."
What are the results of these steps?
Regards
Hannah