The problem we're having is that once a user tabs into the articulate object, they can no longer leave that object. Tabbing simply rotates them around in the object. It even locks out standard browsing shortcuts like ctrl-home. Alt/Shift/Ctrl Tab works, but that doesn't help. I'm trying to figure out a way to give control back to the student, or to put some kind of navigation within the object. Exit course doesn't work either. The only thing we've found that works is to grab the navigation links from D2L and add those, but that's not a great solution.