Ive just tried a test render with three figures{P4, V2, V3}all with high res textures, dynamic hair and dynamic clothing.I used IBL Ambient occlusion. The render started ok then when it hit the dynamic hair it appeared to stop dead. According to Windows Task Manager Poser was not responding. The header in the Poser window also said "not responding". At this point most people would stop Poser and lose their scene, but I just lrt it run and 15 mins later the render was finished. Just because Poser appears to have stopped, dont despair ,just have patience.