Out of nowhere today my FS9 started saying'Your Computer has run out of avaliable memory. Flight Simulator will not exit. You may nothave enough space on your Hard Drive. Run Disk Cleanup to free space, and then try running Flight Simualtor again.']I have 2.62 gigs of ram and I have 2.1 of it avaliable right now... and I have 72 gigs of space free... whats going on :( I really dont want to reinstall FS9 because I have lots and lots of addons that I dont feel like reinstalling :(Thanks

Ok....I just had this nightmare a few days ago and iw as going out of my mind. I had lots of suggestions and I eman lots. the problem for me was that my system would "run out of memory" only after long flights...like 8 hrs, so you can imagine what i had to do to try out a new suggestion! Finally, I got a result. It was to do with some maskclapm or something setting in the Terain.cfg, which is loacted in your main FS9 folder. First before you do that (and i am srry for being vague here) do a search for my post and look for my username: psouthan and the title "out of memory after 8hrs.." that sh9ould find it, then read it and see if you can find a solution but I strongly suggest you try the one I mentioned first, you'll have to read the post to get the specific details of what you need to do to your terrain.cfg, by the way the frame rates got a lot better after it.Paul

Mello,Experience shows that this mainly happens after installing new sceneries .A misplaced landclass.bgl file.A landclass.bgl file MAY NOT be placed in a scenery folder associated with a texture folder.

Check your page fill to see if its damaged. Frist unclick all your add on scenerys then restart see if it will run.Go here just add http:// to the line belowsupport.microsoft.com/flightsim2004faqBeing new not to sure if you can post links:)

As well as other suggestions offered already, make sure you page file is set to "System Managed Size". This is how I fixed my problems with memory errors in the past.Best regards,JimYoung

Whatever you installed recently... uninstall it and try it again.If it was a scenery... just uncheck in the scenery addon screen and restart FS9. I don;t believe you have to uninstall the scenery.Manny