I have the 777 PMDG and i love it using on P3d 4.2 with an thrusmaster X 52 PRO
I have no problem in take off or at cruise but in descend it start to behave crazy.
It started to accelerate in my descend to overspeed in full power and the first time i think it was an input given by my throttle, and to avoid that, iput the override controls to NEVER (in simulation page) so even if my trotthle gives an input the 777 will it ignore it. But suddely it started to accelerate full power and for 2 ou 3 times it happended and i had to turn off the A/T and back again to put it on track even with the override command to NEVER. you can see it in my live at youtube below in the descent phase. Please help me with what can be happening