Thanks Walter, didn't know that Lee is a she...
It is such a pity that Vue is programmed so poorly, imagine what it could do if it would run properly, on both, Mac and PC....
I rendered a little movie with millions of polygons, and I had no serious problems until 7.4 came out. 
Maybe I will do that, return to 7.2.1, still better than what we've got currently. I was considering to upgrade to 7.5, but I read at cgsociety that it is not really better than 7.4