hi JP
Keep the faith
you are looking in the wrong spot.
Look under Ports (comm and LPT).
If you loaded the drivers correctly there should be one that says: USB COM Port (COMXX) ….with the XX being what ever port your QD is assigned.
Then start the CP program and then select the 780 and chose this comm port.
ALWAYS USE THE SAME USB PORTS AND ALWAYS USE A USB HUB.