Hi Glen: After checking everything many times, I took a look at cables on Amazon. They had 2 styles of USB-MIDI cables, cheap ($9) and expensive ($23). I own the cheap version, so I bought an expensive one. It arrived yesterday and I plugged it in. It worked perfectly! Apparently, you get what you pay for with MIDI cables. The project is complete and ready in time for Xmas! Thanks for your support Glen.