Hi Guys,Been operating MD11 on FS9 smootly for quite a time without any hassles.Recently, I experienced troubles on FMS/MCDU with following erratic figures :- airfield alt at FL400- total ditance grossly wrong, for instance 8239nm displayed vs 1958nm true- OPT FL is either dashes or 430 !!- CLB speed not managed by FMS until cruising FL is reached and steady.- MAP doesn't display origin of flight on airfield but rather miles away.Noticed that when passing first set waypoint, ALT, OPT FL and Distance to go becoming accurate.Made a reinstallation of FS9, MD11 fresh from PMDG, heaving cleaning of registry, defrag. and so on without any success.Is there anyone who can advise on what to do in order to recover proper FMS Ops or means of resseting it ?Appreciate your help.Kind regards,Jacques TOURON

Got it, one more time New AIRAC been the troublemaker, problem lays with initial AIRAC0906, loaded 0906 REV.3 and everything runs as smooth as silk.Enjoy,Jacques TOURON post='1588229']Hi Guys,Been operating MD11 on FS9 smoothly for quite a time without any hassles.Recently, I experienced troubles on FMS/MCDU with following erratic figures :- airfield alt at FL400- total ditance grossly wrong, for instance 8239nm displayed vs 1958nm true- OPT FL is either dashes or 430 !!- CLB speed not managed by FMS until cruising FL is reached and steady.- MAP doesn't display origin of flight on airfield but rather miles away.Noticed that when passing first set waypoint, ALT, OPT FL and Distance to go becoming accurate.Made a reinstallation of FS9, MD11 fresh from PMDG, heaving cleaning of registry, defrag. and so on without any success.Is there anyone who can advise on what to do in order to recover proper FMS Ops or means of resseting it ?Appreciate your help.Kind regards,Jacques TOURON