Hello,
You can determine what board you are using in Measurement and Automation Explorer. Since you said that the error occurs when you close the program we can hopefully still work within the program before it crashes. Once you open Measurement and Automation Explorer, look in the Configuration window on the left side. Open the folders My System -> Devices and Interfaces -> Traditional NI-DAQ devices. Under this folder you should see your device listed. You can then visit the website
http://www.ni.com/support/daq/versions.htm
to search for your board. Once you find your board look at what driver works for it under Windows 2000. You can click on that version number to reach the install page.
This should solve your problem. I would suggest uninstalling the older NI-DAQ driver before you install the new one by using Add Remove Programs in your Windows Control Panel. Also, make sure to take the card out of the computer before you install the drivers. The driver must be fully installed before you put the hardware back in.
Thanks,
Caroline
National Instruments
Thanks,
Caroline Tipton
Data Management Product Manager
National Instruments