Do not set a preferred state. Set it to use Factory state, restart and THEN set your preferred state again. The "Window too large, creating the next best thing" is apprently a random error, at least I've had it happen from time to time in Poser 5, but no consistency. And Poser works fine after it has belched that error.

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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.