(EDIT: I had ripped the geomoetry out and saved out that prop, and was using it. Apparantly poser file editor ignores those settings, and turns them back on even if they are off. In the original fog prop linked, they are in fact set to off.)

I was also using a large map, 5000 pixels wide, and I think that also really increased render times. A lower res map seems to render faster (But of course, the trade off is a very pixellated background.)

 

Way too many people take way too many things way too seriously.