[TenTec] OrionII and MixW Config settings

[EI6DL]

Hello ! I have just connected the TenTec Model 712 USB to the Aux/I on my Orion II and ran MixW on my PC .The programme is reading the Digi fsk signals ok but i can not get the programme configed to transmit /send a sig I have the programme set for the TenTec Orion II and have gone into the menu on the Orion II and changed the TX Audio source to Aux instead Mic.Still will not force the transciever to TX a digi sig ?? Can anyone help ? 73'es Tony EI6DL