hi,I'VE tried it all but still the FS 9 is working by his own.After a 10 minutes of flight the sim' crash with the same problem "terrain.dll" even after i formated the drive, reinstall it without any addons on it , it still crases. The only thing that it has got is the update 9.1 but with it or without it it still crashes.If anyone got a solution, ill thank him/her alottttt oferP4 3.0GHZ1GB MEMORYRADEON 9800PRO , OMEGA DRIVEASUS P4S800D

Your cscreenshot refers to the terrain.dll as the OLD, non-updated version.The version you need is 40901Guess the 9.1 update didn't complete properly.Allcott

yes i know, because this picture i took before i reinstall the sim and the update. the problem presist with 9.1.thank's ofer

if it only happens after 10minutes, maybe you should check your computer temperatures?

the temp are normal, Ive even changed the fans to better onesthanksofer