I cannot get the WSPR software to transmit using my Icom 7600. I found in this forum the trick to set the CI-V address using the handshake box and tried it. It did not work. Here is the error sequence:

WSPR Version 2.11_r2263, by K1JT
Run date: Tue Jun 19 16:53:51 2012 UTC
rig_open: error = IO error
Error attempting to set rig frequency.
rigctl -m 363 -r COM14 -s 9600 -C data_bits=8 -C stop_bits=1 -C serial_handshake
=Hardware -c=122 F 7038600

This problem is keeping me from getting started. I hope someone can help.