That did the trick, thanks.

My first thought would be that the software is coded such that it is expected a specific serial number for the interface kit. When it goes to open the device to start using it, the serial number it is expected isn't there and so it fails to open the device. Without knowing how the software is writt...

Prefacing this with the fact that I am EXTREMELY non-technical, so any answer or solution involving technical expertise will get me in over my head very quickly. I currently use a 0/0/4 phidget to control power to turn on and off to a hobby/club slot car track I have. It is connected via USB to my l...