This is a known bug that PMDG and Lockheed Martin are working on..
http://www.avsim.com/topic/477065-all-2d-panels-unclickable-prepar3d-v30/
http://support.precisionmanuals.com/kb/a112/important-and-nearly-foolproof-steps-to-running-your-pmdg-product-in-prepar3d-v3.aspx
More specifically, our testing seems to conclude that data accumulation in VAS related to scenery being seen or over-flown is no longer a factor for simmers using Prepar3D.
That is one major statement I have been longing to hear..
Thanks for the update Robert cannot wait to do some longhaul flights..