Remember that Poser is case sensitive. So your possible typo could be something as simple as Polo1.obj instead of polo1.obj. If what you've done is simply a remapping, and it sure sounds like it, Shadownet's way of fixing it is the correct one. But check for typos :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.