hello

I have had the captain sim 757-200 base pack for over a year and a half now and it has certainly taught me to become a better pilot on many levels and is really a great plane, but now after downloading version/update 4.x (4.4) I am getting the autopilot problems that involve when i activate ANY part of the autopilot (except auto-throttle) the airplane will turn left then right, endlessly, sharp turns, back a forth. I have aligned the IRS with no faults or anything out of the ordinary, and have done the FMC setup well (many times, following online tutorials and everything to my knowledge.. I am not a beginner simmer) including the VNAV and everything, no route discontinuities or anything of the kind. Autopilot WILL turn on but just has this issue that makes the plane not flyable. I understand other people are having this problem and I just don't know how to fix it. I have uninstalled, reinstalled, and even left the ACE option on winglets alone (someone suggested that). Any help would be appreciated.

Thanks