Quote - people are reinstaling poser because of this. something is 100% not right here.

Folks seem to be in a variety of positions, and I can quite understand why going back to SR2 looks like the best solution for some of them.

1. If you plain can't get something important to work (like the "wrong version of tkinter" problem which hit PoserPro) then you've not got much choice. It's a simple case of "the old one works, the new one doesn't."
2. If you try to re-render something but the result is just so different that you can't even begin to figure out what needs to be changed to get you back where you want to be, then you probably don't have much choice either.
3. If your new renders seem to have improved in places but have also developed isolated but unaccepable new artefacts then it's a choice between figuring out how to set things straight in SR3 and going back to SR2. Here, other folk who've already figured out changes can help.
4. If your new renders work just fine and look better than they did before, then you're not likely to be coming here for help. ;)

I've had one or two scenes that fall into the fourth category, but most of mine fall into the third or second. I want to stick with SR3 if I can, but at the moment it's like trying to paint with a brush which squirts inappropriate splodges onto the canvas apparently at random...