I am also having problems with the example VB program in release 5.15.6 with an ADC 11/12 USB. I have made the changes AndyB suggested, product = 111, and port=101. Add those two lines to the module file. When I click open the program just hangs. nothing happens. I tired it wihtout the ADC11/12 plugged in, and it came up with hardware not found error so I lead to believe that 101 is the correct port. Please Help.