This is kind of hard to explain, but on the second screen from the left in the bottom left under "VOR1" and above the NM indication beneath it, I have a mess of characters going crazy.  The green line indicating my heading for navigation on my artificial horizon also bounces around, like it's trying to find a navpoint that isn't working or something.

 

I have NAVDATA installed, and while I selected prepar3d during installation of the airbus, the navdata install only sees it under "FSX", even though it's in the prepar3d directory path.

 

Are these two problems linked?

 

It's really annoying.

Did you check the support forum of Aerosoft?

http://forum.aerosoft.com/index.php?/forum/615-prepar3d-v2-support-for-aerosoft-products/

http://forum.aerosoft.com/index.php?/forum/517-aerosoft-airbus-x-a320321-formerly-airbus-x-extended/