Hi,Suddenly, 3 days now, my MD11 autopilot no longer follows the autopilot. I did not change or install anything.It keeps rolling 15 degr. left and right, with the green line way over the route,It happens both on heading and NAV1.Who knows the cause?GreetzPiet Holland

Hi Piet,Are you using any weather add-ons like Active Sky? Winds aloft can cause this issue.The other thing that might be worth looking at is a possible registry issue. I'm not familiar with the details of the fix as I haven't experienced it first-hand, but if you search the PMDG forum for "registry repair" or "registry fix" you'll see what I mean.

Hi Markadeane,Thanks for the reply, sorry for my late reaction.After a long period of no desktoptroubles it now seems to fall apart.FSX won`t start at all and my WIN7 is giving me headdaches.Verry odd.I don`t use weather add-ons lately, in fact i didn`t change anyhing lately. When everything is up and running again i will look for the registry-issue.I`m afraid i have to install everything fresh. Maybe then also the problem is solved.I will let you know.