P3D V2.5 has 2 hotfix.
The first can be downloaded here, just log in and download:
http://www.prepar3d.com/forum-5/topic/prepar3d-v2-hotfix-2-5-12943-0-2/
The second was released by mistake still in beta stage, was soon withdrawn, but fixes some problems:
This second patch (2.5.12944.0 is Prepar3D v2.5) fixes four problems:
sun glare with HDR,
shadow issue with wave and bathymetry,
SimDirector gamepad,
dull night lights in VC
You can experience, at your own risk.
Install before 2.5.12943 and apply crack every time you install hotfix