ScreeD :-)
I use ScreeD a lot, mainly because it speeds up the display. I use an old Nvidia card that is rock solid in Open GL, but slow.
With P8 I had to make sure the program opens in OpenGL by setting Poser.ini to read-only.
For me, if the program launches in ScreeD, it will freeze if I select a 3 or 4 port view.
If it launches in OpenGL, I can switch to ScreeD and it will work normally.
Gone back to Poser Pro for now, I do miss morphing across body parts, but not enough to put up with losing 15 minutes worth of work here, a half hour there, etc.