The latest version for P3Dv4.5HF3?  Can  you please use the ASUpdater to get the actual version number?   Also, can you please copy the ActiveSky "Prepa3d3DOptions.cfg" file and past it in your reply?  The file is located at:  C:\Users\[YOUR USERNAME\AppData\Roaming\Hifi\AS_P3Dv4\Options folder.