RFD problems setting servo inputs

Hi every one,im setting up my RFD 868 mod radio with a 868ux receiver,it is a while since I have done this.

I did the wizard onthe RFD set up page and every thing is talking to te radio and yappu,I have set serial 1 on 10 and the RC in on 23 anp options on 3 but for the life of me I cannot get the servo inputs to work,were am I going wrong please.