I installed v 4.2 just to see what's up with it.
Well, I've never been a fan of the eyebrow thing. Maybe as a prop, but not as part of the mesh. Waste of time, far as I'm concerned.

However, I find V 4.2 to be a very very unique figure. Unique in the respect that it has one thing which none of my other Poser figures have, and for that matter, none of my objects in any other programs:
The ability to immediately crash Poser 7 the second I move the camera. OGL error.

That could be useful if I ever decide to make a video of Poser 7 crashing, but otherwise, I guess I'm not seeing much advantage here to having V 4.2.

It's OK though. I understand due to the highly advanced nature of the V-4 series, my computer and graphics card might simply not be up to the challenge. Vista ultimate 64-bit, six gigs ram, dual core AMD 6000+,  Poser 7 with the latest update, with my brand new EVGA 640 MB 8800 GTS card might be a bit under the necessary specs.

I think I'll just go and do something a little more primitive and less demanding, like play Crysis or Oblivion with all the settings on full at 4x AA and 1680x1050 resolution. Or load up fifty V 4.0 models and rotate the camera all over the place as fast as possible.  At least I can do those things without any problems.