I have a problem with the shadows in this picture, as you can see the sun makes a nice shadow in the grass, but not on her arm. Wen I make a large ground plane, the shadow on that dissapears too. Can anyone help me with this issue? b.t.w.: the render was done with a stripped down version of the lightsets that are going to be in the marketplace, you can get it here:

http://www.renderosity.com/homepage.ez?Who=Shademaster

thank you in advance.