Hi Matt,
What driver are you loading in HTBasic? Are you using the load bin statement or the device setup to load the driver? Are you able to communicate with your device successfully using the NI MAX software?
FYI, HTBasic 9.3 is a very old version and In our newer versions of HTBasic, we have added a new driver that uses the VISA libraries and it may work better for you. You can download a trial version of our latest version at the following location: https://transera.com/download/htbasic-2021-trial/
Thanks,
Pat
