This is a Youtube video of the Nautel webinar regarding the NV and NX 4.0 firmware release. I missed the original, live version due to other commitments. For your viewing pleasure (55 minutes):
The upgrade seems a bit lengthy, but well worth it. Do not be scared away by Linux, which is a wonderful operating system. Once one understands some basic Linux commands, the operating system itself is very intuitive. I’d recommend anyone with interest in IT and networking to have a basic grasp of Linux and other open source software.