*BUBBA*

I need help with this problem i have encountered when trying to add a fourth channel to the Hitec Neon SS Tx. I am trying to add landing gear to my Multiplex Easystar, but when i flip my toggle switch i discover that the servo connected to the fourth channel only moves a tiny bit. I have tryed my same toggle switch on the other channels and it seems to work fine. I am using this reciever [link]https://foamworks.24secure.com/product_info.php?products_id=471[/link]... Any ideas?
Thanks for your help
Brett