Re.: the texture maps... if you mean "How do I remove them from the long list that Poser loads" there's no other way to do that than to save your scene and restart Poser. For a (slightly) faster load: Remove the default figure (casula James I think) and set that empty scene as Preferred state. Check Launch to Preferred State and voila: Poser now loads with a blank scene. Poser can't utilize dual processors, as you probably know. The PMD are the external morph files, also called Instant Scene Destroyers. Be sure to DISABLE "Use External Morphtargets" or whatever it's called (I'm currently in the middle of a render so I can't check the actual wording) When the scene goes blank (it can also happen from switching from the render to the preview) resize it slightly and it'll pop back to life. It's in essence an OpenGL problem.

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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.