Hi ChrisYou're not alone with this problem.Seehttp://forums.avsim.net/dcboard.php?az=sho...d=138262&page=2Best regardsMarcel

Hi everyone,I had the same problem too when FSX tries to load latest AIRAC coz I made PMDG saved flight as: Make This the Default Flight.Got it to work fine now by:Uninstalling everything!!! FSX V1, 400x FS9 400X and starting all over again from scratch.I will not make it the default flight anymore, let FSX start normally, and then select my saved flight. No probs so far.All the best.

Please check in your C:Documents and SettingsApplication DataMicrosoftFSX folder for the file called dll.xml.If that exists, edit it with Notepad - it should look similar to this: Launch dll.xml False False PMDG Options False PMDGDLLsPMDGOptions.dll PMDG Events False PMDGDLLsPMDGEvents.dll PMDG Sounds False PMDGDLLsPMDGSounds.dll (It might have extra entries, depending on whether you've also installed FSUIPC etc.)Let me know...

I understand that mine looks similar to this but the thing that is missing is the dll.xml False False can you copy and paste it to show exactly how it is supposed to look?Here's what mine looks like: <Launch.Addon> <Name>PMDG Options</Name> <Disabled>False</Disabled> <Path>PMDG\DLLs\PMDGOptions.dll</Path> </Launch.Addon> <Launch.Addon> <Name>PMDG Events</Name> <Disabled>False</Disabled> <Path>PMDG\DLLs\PMDGEvents.dll</Path> </Launch.Addon> <Launch.Addon> <Name>PMDG Sounds</Name> <Disabled>False</Disabled> <Path>PMDG\DLLs\PMDGSounds.dll</Path> </Launch.Addon><?xml version="1.0" encoding="Windows-1252"?><SimBase.Document Type="Launch" version="1,0"> <Descr>Launch</Descr> <Filename>dll.xml</Filename> <Disabled>False</Disabled> <Launch.ManualLoad>False</Launch.ManualLoad> Hope this helps!Kyle-Just another Virtual Pilot