You're talking about Poser5? Poser4 is dual format isn't it? Anyway, running an app (particularly a memory intensive app like Poser) is always going to be significantly slower on Virtual PC simply because you're running one OS on top of another. VirtualPC is supposed to be more efficient than it was but you'll always be better off running an app natively. I'd wait for P5 on the mac or Daz Studio. Baz PS - Ooooo I wish I could afford one of the new G5s!