After much fooling around chaning the [MODES] section of the file ICOM 756 Pro.rig as shown below fixes the problem. Now I just need to know why the SSB line ends in "Y" and all the other lines end in "N".
Original section [MODES] AM=2;2;N CW=3;3;N FM=5;5;N RTTY=4;4;N SSB=0,1;0,1;Y Modified section [MODES] AM=2;2;N CW=3,7;3,7;N FM=5;5;N RTTY=4,8;4,8;N SSB=0,1;0,1;Y 73, Larry Benko, W0QE
