I bought a book from iphoto and streaks appear in the preview

I bought a book from iPhoto and got an email that Apple could not produce it because of problems.  I followed their instruction which was update software, restart computer, then view the book in preview before uploading again.  When I viewed the book there were streaks or missing pixcils on the pics.  The pics don't appear this way in iPhoto.  Any idea what's wrong?  Thanks for the help

Start your mac in Safe Mode and try again.
Regards
TD

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