The 2007 viewer is in reality a thinly disguised 2003 viewer and it can't
handle the soft shadows created by 2007.
As a workaround try cutting the image with the shadow and then paste special
as a png or emf file

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> Whenever I show a PP 07 presentation using the Viewer 07, the shadows
> surrounding the photos, which I added to make them stand out, turn into
> nasty dark, grey lines. they look horrible.
>
> How do I get PP viewer to show the presentation as I designed it?