Hi CalLab_Mark,
Thanks for posting. That does seem odd. I would suggest that you post to a new forum thread since this thread is pretty old. It may not be monitored as much as a new thread would. To help troubleshoot further on the next thread, if you're receiving any errors with numbers or descriptions, please post that info and maybe screenshots for exactly where it's hanging and the configurations you're making. That will help other forum readers better understand the context and might result in more troubleshooting ideas.
Some things to check:
Are you able to communicate with the device outside of Cal Exec on the same machine?
In the mean time, do you have other DMM's that you can use to perform the calibration?
Robert B
RF Product Support Engineer
National Instruments