Ok, so here is where I am with this problem. I uninstalled and reinstalled FSX to a folder of its own on my F: drive. Found and deleted the FSX.cfg file. Disabled user account controls and tried running FSX as an administrator. The problem still continues. Any other ideas that might fix this problem? Thanks

Did you try BartEnder's suggestion?Cheers,- jahman.

A corrupt logbook won't cause a crash, it hangs at the loading splash screen indefinitely as far as I understand it.

Apologies, you did state it was a CTD. Does the event log show any useful info?Cheers.- jahman.

Here is the event log after the reinstall :Problem Event Name: APPCRASHApplication Name: fsx.exeApplication Version: 10.0.60905.0Application Timestamp: 44fd0a92Fault Module Name: ntdll.dllFault Module Version: 6.0.6002.18327Fault Module Timestamp: 4cb7341cException Code: 80000003Exception Offset: 00010004OS Version: 6.0.6002.2.2.0.768.3Locale ID: 1033Additional Information 1: ed42Additional Information 2: d67a8df53cb923b26bc4c2dfc836c8ebAdditional Information 3: 641cAdditional Information 4: 720853abbcf4acd327975e9172425edcI get the error while the splash screen is loading.

Unfortunately that crash info yeilds no other useful info.Things to try:

1. Make sure your MSVC and .NET runtimes are up to date by running Windows Update
2. Disable any add-ons (weather, AI, etc.) so you have a bare-bones FSX
3. Disable all scenery loading.
4. Did you have to activate FSX after the reinstall?
5. When you say you reinstalled FSX, does that mean you installed FSX Deluxe, started FSX Deluxe OK, then installed Acceleration?

Sorry I can't offer anything more specific.Cheers,- jahman.

Did you also delete all system folders of FSX?My DocumentsFlight Simulator X%appdata%MicrosftFSXsame as before, but not in Roaming, instead in Localand:ProgramDataMicrosoftFSXThere might be some remains from old FSX.But also, as jahman said, ntdll.dll is an error often caused by the system - I have had it lately too, and have been able to pinpoint it to the graphic driver. I did a uninstall, driver sweeper cleaning and haven't seen it since.