Hello,
If you can talk to your instrument from Measurement and Automation Explorer then it means that the driver and hardware are installed properly. So it has to do with the application itself.
Make sure that you are using the correct device name, because this new board might have gotten a different device number and also check the primary address.
If you have LabVIEW installed in the computer sometimes the problem is because it was installed after the driver, so you might want to reinstall the driver.
If you don�t have LabVIEW but only the .exe and the run time engine, then you can open NI-SPY and see if the application is trying to talk to the instrument at all.
You can find NI-SPY in Start»Programs»National Instruments. Enable the capture a
nd then open the LabVIEW application and run it. You should see some GPIB or VISA commands in the capture.
Hope this helps.
Ricardo Santa Olalla
National Instruments.