Directly using Firefox or Internet Explorer to logon access to a website enables download of a PDF. Double-clicking on the URL logon link within a Windows Mail message opens the browser (whichever set as default). However, logon only results in a blank window. I've tried many "can't open PDF" solutions to no avail. OS is Windows 7 (32-bit) and Reader X version 10.1.1 with Flash Player 11 Plug-in.