Here's an issue I just discovered with my Mac Mini. Check your OpenGL and make sure it is at LEAST 1.3. My mini's only 1.2 with no way to upgrade, so I just found out I'm locked out of even trying to run DS3. Don't know if PoserPro or P8 will also have that problem, but it is something to consider especially if you're planning to get a laptop or low end Mac.