> Quote - PJ - my EnvSphere has shadows turned off and my IBl has no shadows enabled of any kind. Why are you contradicting the evidence I demonstrated? Not being an ass. I'm wondering if you've tried it a different way than I did.

Because they do indeed behave differently.  See the linked file.

http://cid-b233dcaeefa9709c.skydrive.live.com/self.aspx/Public/Poser8%20samples/IBL%20vs%20Ambient.zip

This is with an IBL, shadows turned off:

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