Hi there,In a flight to Gibraltar now and we have a 70Knt tail wind slightly blowing across to the left and I've noticed that with LNAV engaged the aircraft is slightly tilting to the left and struggling to follow the flight path.Is there any systems which need to be changed or anything that needs to be entered into the FMC to correct this?Kind Regards,Dan

Deactivate Windshear/Turbulance effects and the LNAV should work well. Did you also install the latest updates by PMDG? If not you should do so.BTW, I dont think that you can influence the behavior of the LNAV function, however (as you probably already know) you can activate manual Heading instead.Peace!Ensar