One of the real PITA things about P6 is that it won't render a single V3 at max default render settings. The best place to start when it gives you the evil message is to try a render at minimum default settings. If that works, you can try increasing settings until it barfs. If it win't reach acceptable quality settings, then you can start playing other games. About the only alternative is to start using another app to render (the route I finally took in disgust).