Hi everyone, first of all, sorry if this has been posted before, there are so many posts about autopilot not disconnecting, but none about the autothrottle. When I switch on my autopilot, it switches on everything (including autothrottle) but when I switch it off, only the autothrottle remains on. I have tried everything to try switch this off, but nothing works. It seems to engage right after takeoff by itself sometimes and it only disengages when I touch the ground and have brakes and reversers on. Any help would be greatly appreciated.