I made a PDF that autoloads a Catalog index. When opened in Reader, one of our users tried to use the index and got a security warning from Adobe Reader. Without paying attention, he checked Don't ask me again for this index then clicked Cancel. Result: he can no longer autoload the index! How can he restore the index autoload?
(The only way I can restore it is to copy the PDF and the Catalog index files to a folder with a different name. However this doesn't solve my problem because our users accesss the PDF from a server.)
Just found the answer to my own question in the Acrobatusers.com forum: Edit - Preferences - General - Reset All Warnings button