Hi All,Sorry,i'm not very good at Computers so pardon me if i do not understand your Sentences Well,heres the problem.Recently,i Bought this new Laptop on Windows 7 and 4Gb Ram,Basically,its an Inspiron 1440 but with those changes I Installed Fsx deluxe + Expansion pack with ease and proceeded to fly a Mission(MonSoon Approach),Prior To landing.The Entire Game "hanged"(Stop Responding,the avionics not moving) and there was no sound.roughly 5s later,a popup shows that "A Fatal Error Has Been Detected" and below,a bar keeps loading left and right,unlike in vista,there was this Problem Details,or contact Microsoft,this however,did not have(Windows 7),the loading keeps up for about 3s,before it Shows "Microsoft Flight Simulator X Has To Restart",and the game Shuts Down,and immediately reopen another(However it does not load immediately,just the computer opening it)This Fatal Error Message is random,time varying from 30min-90min(90 Min was the Longest i Played Without Fatal Errors,and yet that was a long flight,the 30min was a Mission,i have installed only 1 Addon,which is Pmdg 747-400XThanks For Any Possible Help Given :)-Marcus

Hi Marcus,Have a look here and see if it helps http://forums1.avsim.net/index.php?showtopic=265952