Over the past few years, I have heard from several knowledgeable members of the NI user community that low-level driver problems persist with the 435x product family. Specifically, there are anecdotes that these products will not reliably provide accurate readings. The symptom that is most often discussed is that these cards can work fine for an hour, a day, or a week, and then begin returning completely nonsensical data. At that point, the only method that restores functionality appears to be rebooting the host PC -- quitting the application, or shutting down and restarting LV apparently aren't enough. I would like to hear comments from users who have had this experience, how they've addressed the problems, and NI's level of support. Simi
larly, I would welcome comments from NI support or R&D engineers about this product family.
