Poser Pro has some quirks, at least on my machine it does. My particular problem is the navigation of the library. I'm not even sure how to describe what goes on, but it many times will not have a navigation list. If I click on it, I'll get a message about "Build Folder Menu". If you click on that to make it build the folder menu, 9 times out of 10, it won't do it. My solution has been to go out of Poser Pro's Runtime, click on one of my other loaded Runtimes, wait for it to build a list there (usually very quickly), then click out of it and back into Poser Pro. That seems to force it to build a folder menu which I can then navigate. Maybe this is just a quirk of how it operates on my machine. But I have also not seen a change in render times as others have. The only reason I use it is for Gamma Correction.

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8