DESCRIPTION:
Your add-in was working at one point and now nothing happens when you click on any of the tool buttons.
You view COM Add-ins and see the product listed, but is UNchecked. When you check it, press OK and go back to COM Add-ins it is UNchecked again.
CAUSE:
At some point an error occured in PowerPoint. PowerPoint took the liberty of disabling the add-in even though it may not have been the cause of the problem.
RESOLUTION:
Then Re-Enable the add-in from the COM Add-ins menu if necessary.