.dll 'ghost' In The P3D Machine

I have been running P3D V2 exclusively for some time now, and all was well until recently...

P3D has started to CTD about 10 minutes into a flight.

Faulting module: clr.dll, version 4.030319

Faulting module path: C:\Windows\Microsoft.NET\Framework\v4.0.319\clr.dll

Faulting application path: D:\Lockheed Martin\P3Dv2\P3d.exe

P3D forum says this is NOT a P3D issue, but rather a Microsoft issue.

Microsoft Support says:   "Faulting Module name clr.dll when you run .NET Framework based application"

"CAUSE:  The issue occurs because an object that is being referenced is dereferenced by the collector in common language runtime 4 (CLR4).  Therefore, an access violation occurs during garbage collection or when the application tries to access the released object"

I'm hoping someone here that has more computer 'Savy' than me can explain what the heck they're talking about... and/or how to fix this.  

P.S.  Microsoft says that there was a Hotfix for this in 2011...  but I would think that was dalt with in updates. 

        (I have .NET Framework 4.5.1 installed)

Rick / Canada