No, nobody's render engine uses 'hardware acceleration'. :) What makes Poser 'different' is that it doesn't use hardware acceleration (ala OpenGL) for the work display (for speeding up mesh display, previewing textures, lights, etc.) like most other 3D CG apps. Poser uses only software-based viewing. I use GeForce cards because nVidia supports multi-monitors better and also directly supports stereoscopics. They are less expensive than professional cards (heck, I'm cheap), like the similar Quadros. Had no problems whatsoever installing SR3; no reinstall of Poser 5 required. Alternatively, some are experiencing problems. This is 'the Way' of software. BYS