[mlaw_sf]

I just updated Omnigraffle Pro last night. Since doing so, I'm experiencing a problem with drop shadows. They aren't rendered as a shape of specified color, but rather they're an exact mirror of the original element. So if I have a white box, then I apply a gray shadow to it, the shadow appears as a white box (with the designated offset and blurry characteristics). If a shadow is applied to an image with detail, the shadow retains all details of the original image. It looks bad.

How can I get shadow to act as a "shadow" again, and not as a "mirror"?