Hi
never had a problem with Forest Pro, just installled the latest version and lots of rendering unhandled exceptions in VRay.
After installing the previous version (ForestPackPro806_x64) and all gone.
It also had a rendering unhandled exception of not being able to find Grid2a.bmp, one doesn't exist, so I just copied and renamed Grid02.bmp, it did point to the right folder for the distribution maps ?