If you have the think-cell add-in for PowerPoint installed along with Articulate Presenter '09, you may find that you encounter an error message when opening or closing PowerPoint.
We received reports of this conflict when think-cell was updated to version 5.2, but it may also affect other versions of the software.
In response, do any of the following:
You can safely ignore the error message and continue working.
Or, uninstall the latest update for think-cell (return to an earlier version).
Or, temporarily disable the think-cell add-in for PowerPoint while you're working with Presenter '09.