It could be a Flash security setting blocking the playback of local Flash content. You may need to set up the folder you publish your presentations to be accepted as a trusted location for Flash. Generally, if you are publishing to the default My Adobe Presentations folder it should work, but not always. You can update your Flash player security settings to include your local drive here Adobe - Flash Player : Settings Manager - Global Security Settings panel
As a follow up, are you playing the index file from the same location as the rest of output of Presenter? All the output files must stay together or playing the presentation won't work.
Thanks for your response flyingj.
We are playing them from the main output folder. On my Mac, I added the root folder to the trusted locations area in System Preferences and I was then able to open using Safari but still not FF or Chrome.
I'm now wondering if the creator needs to add his C drive to trusted locations for Flash on his Windows machine and then republish.
I'm still open to suggestions.
You shouldn't need to republish, changing the security settings should be enough.
Odd that your changes don't affect FF, Chrome is its own ball of yarn.
The other option would be to push it to a server (Connect or otherwise) and play it from there. That should get around the Flash security issues.
I thought republishing was odd as well, but that is what Adobe Support suggested. True enough about Chrome. And yes, playing it from a Connect server works fine. Thanks for your help.