I'm having a lot of problems with P6..out of memory, lock ups... subsurface scattering wil not work at all. locks up some P5 light sets will not work, such as Danaes grea tradiance pro set...locks up other than that, all seems ok so far :) I'm going to square one...one figure...add a light, and play around with all the new lighting features...then go from there. Hopefully the upcoming patch will address these issues what's interesting, I had exactly the same type of trouble with P5...it took until SR3 to get it under control.

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854