Hi. I'm not familiar with the Protonik, but on most transmitters it is possible to choose with channel the sticks output to.
So you could possibly try and set the yaw and roll to output to some other channel and see if that helps.
Are you using a USB dongle? If so, you can try and uninstall vJoy and/or Smartpropolus if you have those installed.
If it it still doesn't work with a dongle, you could try the Smartpropoplus method described in the manual (and Spektrum tips document).