solution to my Ooomi problem after 6 years
Well, I stumbled upon the prims again long after I discarded snow leopard from my mac and it still would not load. Being 6 years older and having no apparent life, I decided to tackle this problem again and well... stupid me: I dropped the box object into Mesh lab and had a quick gander at it and saw what I thought might be the problem. I then dropped it into blender 2.79 and changed the quads to tris and exported the file and reloaded it into my Mac version of Sculptris and guess what? Worked like a charm. I know i am writing this to....well...no one.....because pixologic doesn't care but I love sculptris and i got the prims to work on my mac so if OOMI you are still out there add this to your trouble shooting list for the prims. This was a flea in my ear and I just don't like losing. Now I am going to play.