Hi Peter,
(I updated your title, so now help is indeed, "needed," and not "nedded." Been there myself plenty of times.)
In any case, is it possible that you're running Reader X, and have the latest updates of that? If so, please consider downloading Reader XI, and make sure you're running version 11.0.07. And, this document offers instructions for setting up your browser to display PDFs when you're using Acrobat XI or Reader XI: Acrobat Help | Display PDF in browser | Acrobat, Reader XI
Please let us know how it goes.
Best,
Sara
