this is a new gbox i got yesterday. the old actuator is a prosat 118 that was working well with the old prosat actuator. i just put up a 6' dish to get c-band channels. the actuator has a variable resistor that is turned by a gear when the actuator moves. the gbox only does about a degree of change each time it is triggered either from the remote on the gbox or the remote on the receiver when i go to position the antenna. once i give a postion to the bird, and then postion the next on, i can change back to the first satellite but nothing happens. i think the old controller has a voltage or current through the postion indicator that gives a position reading on the front of the controller. i got it from sadoun yesterday. charlie