Clicking URLs with acroread8

[Micheas Herman]

Not a direct solution, but I have found the gnome pdf reader evince (
graphics/evince ) to be able handle all of the pdfs that I need to fill in
(and I deal with quite a few pdfs from government websites.) and it avoids
many of  the software compatibility problems of acrobat reader.

You might try evince, I have had a lot better luck with it than xpdf, and I
haven't had to install acrobat reader.