Thanks, Ida and Jono.
Ida - the '.com' email address was a dummy. I was grasping for straws since '.net' didn't work.
Nothing happens when I click Button1. Button8 works fine in another form, but not on the Test.pdf I posted. The correct protocol is 'mailto":' but nothing happens for me with those buttons. Buttons with 'mail:' respond with an initial dialog to select an email client, but don't open my email client. This is just an extension of my terrible week with Acrobat Pro Extended 9.5.1.
First, my Acrobat Pro Extended 9.5.1 stopped working after an update. The Acrobat part aborts on startup on Vista Ultimate due to Data Execution Protection error. When I disabled DEP, I got something like "Acrobat can not be disabled in DEP," hence I can't preview my forms on the Vista computer. Livecycle still works, but not the Preview feature.
I have reinstalled Acrobat + disabled all Startup programs + disabled DEP to no avail.
If any Acrobat Pro Extended 9.5.1 team member sees this post, please lend me a hand. I need my Acrobat. Thanks.