AS:    "- Again, HDRI/IBL Lighting - Start with a quality value of 16. In fact, I NEVER take it any higher than 16. When Bryce loads your HDRI, its default is a value of 256. (so, take it all the way down)" <<<<<<

Heh.  
Now, I on the other hand, see distinct banding in the rendered shadows if I use anything at 256 or less, so I crank it UP as high as my machine will take.  
Sorry, AS, I will have to agree to disagree on this point.  
On the other hand, for me, the Intensity settings go WAY down.... sometimes as far as .5, depending on the IBL image used.

RosemaryR
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"This...this is magnificent!"
"Oh, yeah. Ooooo. Aaaaah. That's how it starts.
Then, later, there's ...running. And....screaming."