I am on a helpdesk and I am providing assistance to a user running Articulate Studio 13 using Presenter. It seems as though every month or so the Articulate tab diapers from PowerPoint. Our only recourse has been to uninstall and reinstall the software. We are using Window 7 SP1 x86 and Microsoft Office 2010. I do ensure that the add-on is not disabled. I’m thinking that this happens after Windows updates but am not sure. Is this a known issue? Is there a way to fix this issue permanently? Thanks in advance!