I had a similar problem with the NEC puck. Turns out the cable has an open connection so it's worthless. I was able to figure that out by wiggling the cable around. Fortunately my I1 display pro puck also works with spectraview if you installed the driver along with Spectraview. As a long time amateur radio operator, I would have tried to fix the cable on the NEC puck if I didn't already have the I1 version.