Hello,
It sounds like an installation has been corrupted. As a general, first-order fix for such problems, you can uninstall and reinstall the program with corrupted files (using add/remove programs from your control panel). To get a better idea for which program has corrupted files, when MAX crashes click the details button (if one shows) in the error message (include such information in any repost as well!). If your system was stable prior to installing NI-VISA 3.1, you can try uninstalling and reinstalling NI-VISA. If you have the time, I would uninstall all of your NI hardware and software, then reinstall your NI software, then reinstall your NI hardware (you should check your hardware manuals to be sure that your specific NI hardware does not require instal
lation before the software). Also, if you could provide the version information for all of your NI software and your current hardware setup (NI and otherwise), it may open other options for solutions!
Thank you,
Best Regards,
JLS
Applications Engineer
National Instruments