P2012, Windows 7 64bit

I lost everything to a crash and now I am going through the agony of re-installing. I vaguely remember a couple of items that need to be selected or unselected in Edit/Preference, having to do with enhancing the speed of rendering and I think something to check or uncheck if I am using Weight Mapped, which I am. Oh, and another chance to thanks those guys at Poser Place.