WTH? F450 built.....plugged in computer to calibrate....I have a Spektrum DX6i and AR7210 receiver.....everything looking good in the calibration.....at least i think......when I hit "write" nothing happens.......the box just turns red when i put my mouse over it.....i click it and nothing really happens. I close out of the calibration program, unplug from computer......throttle up and nothing.....i disconnected the batttery.....powered up again ....nothing.....motors don't even wiggle.....aghhh!! Very frustrating...suggestions??