Actually.. what you need is to rotate the "shoulder" (which, for some reason is what Poser calls the Upper Arm) NEVER EVER use side/side on the elbow. Real elbows can't do that. And it will look artificial if you try :)

I don't think V4 loads with Limits On - Poser defaults to Limits Off and you have to hardcode it to  make sure it's on.

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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.