Lachose

Dan,I really appreciate your help. I'm sorry I have very few time for FSX right now. That's why I haven't answered yet.I hope to post the details soon.R

Ooops.. I'm sorry. Too late now to edit.R

Hello,I have this kind of problem too. However I personally disagree with the memory problem thing.This is my config :ASUS N51VF-SX055CIntel Core2 Duo T9550 @ 2x 2.66 Ghz, 6 MB L2-Cache, FSB1066RAM : 2x 2048 mb DDR2-800Nvidia GeForce GT 130M - 1024 mb GDDR memoryVista 32 SP2OK this is not a race horse but it does the job. It works actually pretty good with all kind of airplanes, sceneries, missions, etc... including the PMDG MD-11.I have been trying for weeks now on different locations in different situations with different settings. The only times the MD-11 makes FSX crash is when I enter a new destination airport in flight (F-PLN/select one of the next wp/NEW DEST). I don't have any problem during take off, landing, with SID's or STARS or even with DIR INTC. The only problem is the NEW DEST ! It crashes in about 92% of the cases no matter the settings or the situation.I was thinking about paying to buy a 64 bits license of Vista in order to get full usage of the memory but I just did the following test and don't really like the result :- Vista reduced to a memory usage of in any cases less than 650 mo (using Game Booster)- FSX graphic settings all unchecked or on minimum without any exception.- Flight plan from EHAM to EGLL, take off...- on a stable climb, FL200 after passing EHRD, 2d cockpit...- Laptop globally cold, CPU around 50