I just got the software and installed it on my Win 10 shack computer. The drivers work, since the device manager "sees" the xcvr. The radio has been assign the COM4 port. However, when I start the remote utility program, no radios appear on the radio selection tab. When I start the remote control program, I immediately get the error message, "Cannot open COM port." It does not specify which COM port it tried to open. Any suggestions? I would hate to have to read the manual.