Plop render is your friend..... If you have most of an image the way you want but need to make a change after your final render. Do your change, then in the rendered display render, draw a marquee just around what needs to be re-rendered. Don't have to redo the whole thing for a small change... And if you need to change aa for just a limited area - can do that - change the render settings, draw a marquee as above - and plop render... Also useful to test positioning, textures, etc. best, hewsan