Drivers are the latest versions. I was using Hexagon 2 with no difficulties. It were the movies in the Hexagon manual that made me decide to install Quicktime.

I had removed the VRML support plugin from Poser to speed up startup. I was told it had something to do with Quicktime. Re-installing the VRML plugin did not solve the problem. Throwing out Quicktime (with ITunes aaargh!! I never asked for that!) did.