Copying a solution from this page : (http://kb2.adobe.com/cps/898/cpsid_89867.html) Solution 6 If nothing happens when you click the Download button and the Sign In dialog box doesn't appear, start the ADA and sign in again. Start the Adobe Download Assistant. Sign in with your Adobe ID and password. After you click Sign In, the download should start immediately. If this doesn't help, open the page http://kb2.adobe.com/cps/898/cpsid_89867.html, and look for other solutions. This document is chat enabled, and when a customer support person is available, a chat window appears using which you can work with the customer support person to resolve your problem.
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