Maybe this is a stupid question... but Im mad with it :P How can I drop shadows on a white ground? I cant do it. When I display the ground and set its color to white it always renders with the color of the lights of the scene. Ive also put all light colors to white, but still the same. And if I set ambience color to white, yes, the ground is white, but no shadows are rendered. Basically, what I want to do is the shadows of the left picture on the ground of the right picture. Thanks in advance.

my best advice, without trying to solve the actual problem. Render twice, once with the white background, one without and merge them in post.

Try giving the object or ground plane that you are working with an ambient colour. Black will make it take the colour of the lights and have shadows. White will make it stay white but you will loose your shadows. I recomend trying a grey. You will keep your white ground and have light shadows. If you have a high CPU or a lot of time to render, or it's a still image your making double rendering as above works well to. I hope this helps.

Thanks Deimos. I set the ambient color of the ground to grey (55%) and when I render the image the shadows are there, and the color of the ground although its not white, its very very near as you can see in the picture. Thanks Deimos.

Attached Link: http://www.angelfire.com/tv/MDD

Look's good to me. I had a similiar problem recently in the Animation we at ME productions are making. It was a winter setting. Even with this solution I was unable to get 1 shot up to par. If I can I will go back and check it out later. You may like my website at http://www.angelfire.com/tv/MDD there is a free download section to. Do you think a tutorial section covering things like poser sets and such would be an asset to the website? In any case I am happy I was able to help. It look's good.