I've recently installed Simplify3d on my Linux laptop. When I try to run it it simply dies: akegata@alucard:~$ /opt/Simplify3D-3.1.0/Simplify3D [1]+ Stopped /opt/Simplify3D-3.1.0/Simplify3D Nothing else is shown, nothing seems to be logged, so I'm not sure how to troubleshoot this. Running Ubuntu 15...