About our fifth flight, my wife at the sticks...in GPS...everything looking normal...she took off hard and the PV immediately took off leaning hard to the right, headed right for the treeline. She made an executive decision to climb to miss the trees, and it disappeared headed toward Georgia. By this time I'm panicked, but my wife has the right joystick held down hard left. In a minute or two it slowly came back to us and she got it 'landed'. Two questions ... When I turned off everything and restarted it all, the problem disappeared. Could the problem have been that the joystick was off neutral when I powered it up, and it initialized incorrectly? If I had switched off controller power as it was crossing the Savannah River....would it have tried to return home? Third question ... I didn't power off because the treeline was around 75ft tall. Is there any way to change the RTH altitude? I'm new to the Phantom and would appreciate any ideas you've got?