I don't know if it was Poser 5 or Poser 6, but, in one or other of them, Open GL clashed with my display driver.   If I moved the cursor over a figure, bodyparts, or the whole body, would vanish for a few seconds.   Then, at last, a driver update came along and the problem was banished to the outer darkness.

A few weeks ago, I tried to install a demo version of some software and found that it wouldn't even start.   I hunted down a device driver and I was able to start the application and run it.   Odd thing, though:  I had to re-install the device driver, every time I wanted to use the prog.   Then, yesterday, I discovered that even this wheeze no longer did the trick.   The software just wouldn't run at all.

I located another new driver and installed it (having to install a bunch of MS updates for compatibility, against strenuous efforts from Windows Update not to let me have them).   At last, it went on and the software did a Lazarus.   Everything was fine.

Then I started Poser and thought it was a bit strange, the way half of Terai Yuki vanished, whenever the cursor came close.   Strange, but strangely familiar, too.

So I suppose this isn't entirely OT:  how much do I lose out by using SreeD, instead of Open GL?   It's mainly Poser 7 that I use now.

It won't affect your render at all.  It will affect things like the resolution textures are previewed at, shader preview quality, and framerate when moving the camera or adjusting figure pose and the like.  If SreeD works well for you, there's no harm in using it, the output won't be affected at all.

Thanks!