FSX Crash to Desktop - Aparent G3D problem

[FSX_CRJ700]

I've been researching this already and tried a few fixes, but nothing is taking.  

 

Faulting application name: fsx.exe, version: 10.0.61472.0, time stamp: 0x475e17d3
Faulting module name: g3d.dll, version: 10.0.61472.0, time stamp: 0x475e180c
Exception code: 0x80000001
Fault offset: 0x000b50df
Faulting process id: 0x69c
Faulting application start time: 0x01da69e787740f9f
Faulting application path: D:\Program Files (x86)\fsx.exe
Faulting module path: D:\Program Files (x86)\g3d.dll
Report Id: 59d802a9-2da5-40f5-8db1-170782208ea5
Faulting package full name: 
Faulting package-relative application ID: 

 

First thing I tried was changing "scenery.cfg" to "scenery.off" to let it rebuild. That worked for one cycle, but the next time I went to start up, back to crashes again. So I looked at the log again, and the error above was followed imediately by this:

 

Faulting application name: couatl.exe, version: 3.2.0.5318, time stamp: 0x6553c66e
Faulting module name: couatl.exe, version: 3.2.0.5318, time stamp: 0x6553c66e
Exception code: 0xc0000005
Fault offset: 0x0005aa89
Faulting process id: 0x2ec4
Faulting application start time: 0x01da69e794417b61
Faulting application path: D:\Program Files (x86)\Addon Manager\couatl\couatl.exe
Faulting module path: D:\Program Files (x86)\Addon Manager\couatl\couatl.exe
Report Id: b6ffcd1d-d39b-4f88-a663-889bc480b771
Faulting package full name: 
Faulting package-relative application ID:

 

So next I went to my FSDT updater and ran it. This would fix the problem again for only one cycle, and the next startup crashes again. So I repeated this step with the same result two or three more times. I figure something with GSX is corrupted so I uninstalled it with the intent to re-install. Again, this fixed the problem for one cycle, and now I'm back to the crashes again with these same two messages even though I haven't re-installed GSX. I'm not sure where to go from here.

 

-Brad... 

[FSX_CRJ700]

Update:

1) Ran the FSDT Live Update again despite GSX having been un-installed; No crashes.

2) Re-installed GSX, back to crashes.

3) Repeated item 1, no crashes.

Also of note, what kicked all this off in the first place was my aircraft.cfg file for my Wilco Falcon 7X just up and vanished from the computer. Like full on David Copperfield, poof, gone. (And we don't need to get into the Falcon being garbage. I researched it before buying it, knew it was pretty hot garbage, but they did a sale, so it was CHEAP, hot garbage). That was the first crash, and then I've been mired in this ever since. Not sure if they're relatead, but at this point might as well not skip anything. I found out the cfg file was gone after I loaded a saved flight and it errored out and then opened up my hangar and found them gone.