Ah crap, while I'm here... Do Boolean operations not work for complex objects? 

I'm just trying to subtract a cube from a portion of my model and the whole damn thing disappears!  (I've tried the reverse operation.. you know just incase and I get a little sliver of the cube as the only thing left... in other words, it will subtract my mesh fromt he cube, but not the cube from my mesh... bargh!  I really don't want to pull out Hex... it's so buggy... plus I'm trying to learn Carrara here!)