[chirp_users] ic-2100, Icom USB OPC-478 FTDI (Valley Enterprises), driver from ftdichip.com and Windows XP

I have an ic-2100, Icom USB OPC-478 FTDI (Valley Enterprises), driver from ftdichip.com and Windows XP setup. The usb serial port is on com 5 (I checked in device manager). With the ic 1200 in the clone mode, asking chirp to download from the radio, clicking OK and pushing the smwmw button on the radio, I get “An error has occurred. Failed to communicate with the radio unexpected response from radio”. I even tried without putting the radio in the clone mode......same response.....also tried two other computers (one XP and one Windows 7). When I ask the program to detect the radio I get....”An error has occurred. Unable to get radio model.” Am I missing a step or two or doing things wrong? Any help would be appreciated.

Jean N2VQA