I want to make a new Napa content add-on, and I'm following this tutorial:
http://dev.office.com/docs/add-ins/get-started/create-an-office-add-in-with-napa
But then when I go to the page to select which Office application to run my content add-in, the "Launch your application in" selector is stuck on Microsoft Excel Web App. I cannot select any of the other options (nothing happens when I click on the other circles).
How can I run my content add-in on Microsoft Powerpoint Web App?