Problem deserializing the panel state

[Pondflyer]

I have just added the A2A C182 to my Prepar3Dv2 system. Whenever I save a flight containing the C182, exit, and re-load it, I get the error “There was a problem deserializing the panel state while loading a flight, mission, or checkpoint. This could be caused by a change in serializable plugins or a corrupted file. Consider removing the .pnl file or resaving to generate a new one.” I do not get this error when loading flights containing other aircraft and I did not get it before installing the A2A C182. As soon as I delete the flight containing the C182, the problem disappears. When installing A2A_Update_11_20_14.zip, I got the same DirectX error described in my post of 12/1/14. What can I do to fix this?

My system is:
Alienware Aurora R4
Intel Core i7-3960X @ 3.3 GHz (12 CPUs) Overclocked to 4.2 GHz
32 GB RAM
Seagate, 2 TB (x2) in Raid 0, @ 7200 RPM
Samsung SSD 256 GB
NVidia GeForce GTX 680 2 GB (x2) in SLI
Windows 7 Professional 64-bit SP1 & DirectX 11
Asus VG278H (Stereoscopic) monitor

A2A Order Number: 95383
Date Ordered: Sunday 30 November, 2014

Thank you,
Joe Powel