Imported background was appearing fine in preview mode in Poser8, but not now in Poser9. This is NOT the problem.

Maybe this helps: squeezing my mind, I tried to use a .PSD file and GOAL - it loads nicely OK. PSD yes - JPG no, both same node settings.

But is boring if I need to convert first my JPG photo files to PSD files, taking in mind that my previous Poser version was showing them apparently without  troubles...

CASETTE
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"Poser isn't a SOFTWARE... it's a RELIGION!"