Rockfish ... That would mean ensure that the servos are set at neutral. I am not familiar with your DX7 but its basically a JR and with my 9X when you set up, ensure that the FLAPS are all set at ZERO. So go to the flap function and ensure the FLAP positions are all at 0%. Then try to get the horns in a 90* setting to the servo housing or level it as necessary. This may happen by moving the servo horn on the servo output shaft or if its slightly out then use the SUB TRIM, not the trims by the gimbals.