Not quite what I was asking, but the reminder about rendering to disk is worth itfor which many thanks. I used to do that for specific reasons in Bryce, but lately I have fallen into the bad habit of saving or exporting as bmps. Since I usually save the Bryce file anyway, I keep open the possibility of rendering again for another medium or purpose.

There's still much about various display screens that is a mystery to me.

As for the Bryce document window, I tend to do about the same, though I usually work at Max Rec, and do a lot of renders, partial and full, often resetting the doc set temporarily for whatever it is I am checking for.

I also thank you for the other comments, which may be connected indirectly.

What I have noticed, howeveronly from actually looking at someone else's monitor (good one but at a different DA setting), is that Bryce seems much more sensitive, mainly lightwise, to display monitor settings than RDS or other programs. Since I use the same compression on all of them (Adobe), it can't be that.

Am I missing something else?

Thanks much again.