I've had flight simulator 2004 since it came out, but in the last week it hasn't run when I try to start it. It displays the splash screen and gives the "building database for new scenery files" message every time, but then when the scenery loading completes, an error message appears which reads "Your computer has run out of available memory. Flight Simulator will now exit. You may not have enough free space on your hard drive. Run Disk Cleanup to free up space, and then try running Flight Simulator again." I ran disk cleanup like it suggested, but to no avail. I also tried deleting a bunch of the aircraft that I don't use very much to decrease the amount that the game loads on startup. Nothing changed. I even went into the scenery.cfg file and got rid of some addon scenery that way, but it also didn't do anything. I have an 80 gig hard drive with 22 gigs left, and 512 megs of PC3200 ram. Does anyone have any clue how to fix this? Help would be very appreciated!Thanks,Scott

You might want to defrag your memory before running FS...check out my utility FSAutoStart.Another possibility is that a scenery file is located in the wrong folder - this is a known problem. There are posts in this forum about this...

I've made several posts on this topic as well. In addition to what Ken mentions, some addon scenery or even a bad traffic.bgl might be the problem. The out of memory error is misleading.In order to find out which scenery is causing the problem:Do a search of the Flight Simulator 9 folder and subfolders for this file: scenery.dat. You should see many listed. Then, sort them by date. The most recent scenery.dat file should point to the folder where the "bad" scenery bgl is, if that is indeed the problem. Remove the folder from MSFS and remove the cooresponding scenery.cfg entry, and try to restart...The scenery.dat is a good way to diagnose this issue when it's scenery caused, as the OOM message happens when MSFS attempts to build the file as it does when it recognizes new or changed scenery.-John Edit: I should qualify this method of finding the bad bgl by saying the scenery.dat in question should have a time/datestamp as recent as your last attempt to start MSFS. If it doesn't, then the problem is somewhere else...

Thanks for your replies, I dont have time to try to fix it today, but ill try tomorrow and post whether i got the problem fixed or not. Thanks a bunch for your help!-Scott

OK, sorry it took so long to post my update on this thread. I deleted the recently added scenery files like John said, and it didn't work. Then I went farther and changed the names of my addon scenery folders so FS wouldnt find any non-default scenery files whatsoever, but I still got the same message. I downloaded Ken's FSautostart, but the program wouldn't install properly (something about Microsoft .NET framework ???). My traffic bgls havn't been updated in a while, so that's not the problem... I'm really stumped on this one, guys. If anyone can offer any more help or suggestions, I would really appreciate it. -Scott

I had this problem and it ended up being a AFCAD file for one of the simflyer airports (kmco). I would move all of your addons out of your FS directory and also delete the files in Documents and SettingsApplication DataMicrosoftFS9. This is a hidden directory so you will have to tell XP to view hidden directories by clicking on tools.. folder options.. view and then click "show hidden files and folders" when you open a folder or click "my computer" . It's proboly best to start FS in it's default state on the first but and then add your addons.