hi all i was wondering if anyone has suggestions or tips, or can give me a general slap in the right direction to resolve a problem i'm having.
my pmdg 737 800 ngx is having problems with its auto pilot system. for example i can leave LIMC heading for EGLL, with correct SID's and STAR procedures respectively and flight plan set with speeds and altitudes correct. the problem that i have is i can be in a stable climb and or cruise, with both FD's set, auto throttle on LNAV and VNAV active with CMD A on, my joystick will suddenly pull back, the aircraft goes into a steep climb and or decent LNAV VNAV and CMD A will have turned off.
Once i've managed to restore sanity and a climb and managed to line up with my next waypoint, and selected the waypoint on the FMC, LNAV will operate VNAV may or may not operate, ( i will initiate a climb depending ), but CMD A will not operate again for the flight, I switch to CMD B this can overcome the problem for the auto pilot. however CMD B can also disengage when another climb or decent occurs, and i can not get CMD A or B to operate again for this flight.
Incidentally both CMD A and CMD B have never operated for ILS together.
im using FSX se edition and ( this may be a cause of the problem, but shouldn't be ) using FSX's real time weather updates.
any advice or tips will be rewarded with a drink at the bar, thanks
darren mansell