OpenGL can handle max 8 lights. Look how mutch your videocard can. With laptops, often memory is shared. Is enough (video)memory available for Poser? Depending on your videochip you better disable hardware shading, especially for complex scenes. But maybe you want to raise "Preview Texture Resolution" to a higher value (I'm using 1024MB). With this setting you are able to count pores in your preview window ;)

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