"Generating Graphics" long times

I can understand rebuild times, but what is this whole "generating graphics" stuff.  I have a quadro 4000, and I am working on a part with 2-4 bodies, no current transparencies, but fairly "swoopy"  This design was done a while ago and I don't remember these long delays in generating graphics.  It was orginally done on a system with (2) FX 3800 cards.  I have the image quality turned quite a ways down, but is there another setting I should be looking at?  I have realview turned off.

Thanks for any pointers!

SolidworksGeneral