Dan, There are multiple versions of the drivers for the OPC-478 cable. I do not know which version of the drivers you have. You may wish to contact Icom tech support directly by phone and they should provide you with help getting the driver to work. Otherwise, feel free to contact me off list or by phone and I'll be glad to try and help you.
John Coupe WA3BXH Coupe Communications 215-646-2255 [Non-text portions of this message have been removed]
