I tried to program my ht 1000 with a serial port cable with an FTDI USB adapter attached to it on my Mac running Windows 10 via a virtual machine with Dosbox (I have programmed my 750's and 1250's on this VM with CPS, and it works perfectly). When I try to read the radio, I keep getting the error message, "rib port communication unsuccessful." I tried on five ht 1000's and also attempted this on my old Windows XP computer. I plugged the programming cable into the serial port, and I get the same error message. I also tried with the FTDI adapter, and I get the same message. Does anybody have any idea why this is not working?