Apparently this was an issue in v11.0.5661... Once I upgraded to v11.1.5668 this particular problem resolved itself.
I was wrong. The problem still exists, but I narrowed down the cause. It only happens when a customer is not logged in. If they are a "guest" on the portal, clicking on the "Leave a Message" tab just cause the page to refresh (ie: blink). Nothing else happens. If the customer logs into the portal, then clicking on "Leave a Message" works as expected.
I checked and I have "New Tickets in Portal" set to "All Users". However I don't believe that this setting should effect anything.
Ben Santiardo, Programmer Analyst
Eastern Suffolk BOCES