I downloaded GpsGate software and installed it on my ASUS laptop running under Win 8.1 64x, while my Montana 680 GPS device was connected to usb port. When I ran GpsGate for the first time, I accessed its main panel but it could not find and recognize any GPS device while my Montana 680 was connected to the usb port. Incidentally, GPSGate never run again. I tested the software also on a HP laptop with running under WinXP SP3, but again it did not recognized my GPS device. Incidentally GPSGate never run again.
Thank you for your help and assistance to run GPSGate again and recognizing my Montana 680.