I usually do 600dpi for print, but only 72dpi for basic test renders. I use Poser mostly for animation, so I use a 16:9 size ratio - 768x432. When doing final renders, I'll bump it up to 300dpi for the animations. I've recently discovered, thanks to the awesome tutorials on Daz' Arcana site, that the map size of the lights makes a difference, however subtle. It just gives it extra depth. As for the difference between those resolutions, I'd say that yes, 300dpi is going to look better - you're getting more detail per inch. Resolution could definitely fill a small tome, and I'm no expert. But 300dpi should always be better quality than 72. --silver