Unable to publish in Presenter

Hi - I'm trying to republish several courses that I built in PowerPoint/Articulate Presenter. When I try to publish on my new laptop I get this message when I open the PPT file: "Some controls on this presentation can't be activated. They might not be registered on this computer." I clicked OK to dismiss the message and opened the publish dialog and get this message: "Presenter was unable to open this project file. Reboot your computer and try again." which I did, and get the same series of error messages. When the publish dialog opens, my customer player is gone and can't import. I tried publishing anyway and get an Articulate Presenter Error Report. The information link has this in the error report: <Message>The method or operation is not implemented</Message>

So, I tried to republish from my old laptop that I used to build these courses. I get the same "some controls..." message. When I try to publish it hangs on "Cleaning up temporary files" . I tried uninstalling/reinstalling Presenter on the old laptop, same result. I tried creating a new presentation and importing files and get the "we're sorry something went wrong and it might close" pop-up withe the same message in the error report (method or operation is not implemented).  

This is not specific to a particular file but happens on every PPT/Presenter file.

How can I resolve this? I have a client waiting on several files.

Thanks, Steve.