I have a ColdFusion based website where I generate FDF files to fill
out a PDF template, and it works fine for me and for others in Windows
using Firefox or IE, but I'm getting feedback from Mac users saying
that when they click the link to the FDF, they get a blank form.

So they are getting the FDF, and they are being directed to the address
of the PDF template, but the form data is being lost somehow.

Does anyone know of a solution for this?  I don't know what versions of
Mac OS people are using, but the last person to report a problem was
using Adobe Acrobat Reader 5.0, which is an older version, and I know
you can't get the latest Acrobat for anything but OSX.