If I've got Radarbox running (4.03) and open Elements 9 it crashes Radarbox.
If I've got Elements 9 running and open Radarbox, all is good.
I've had a Radarbox for a couple of years now, and this isn't a new problem.
It's just that I've decided to report it now as I've just built a new rig and the problem is still there.
I wondered if it was a known bug.