It could very well be overheating. I had a fan fail once, and that did result in BSOD on every processor-intensive application I used. And Bryce and Poser certainly fall in that category.

So first of all, open the box, turn it on and check the CPU fan. Those are cheap at least :o)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.