thanks a lot, i found out that i had a gray fill selected on the object, so it showed instead of the white.
DDDesign, tell me more about your idea. i design tradeshow exhibits and we are always backlighting graphics. I can't seem to get it right in Renderworks. I tried to put a point light behind it and use the plastic translucency shader, or just make it semi-transparent, but it's not working quite right.
If anyone has any good way please let me know.
-scott