Hi Matt,
OK I have checked these points - and think I'm right in saying it's none of these.
1. The Frequently Asked Questions are all Public.
2. The Category is published and the articles are visible in the front end
3. The name matches and I have tried others
4. The categories are listed in the normal joomla categories section in the back end so I believe are com_content.
This is where I put the test:
poultrykeeper.com/chickens/frequently-as...faq-slider-test.html
If you want to have a look at the back end, that's no problem - drop me an email with the access level you require and I will create a user for you.
Thanks,
Tim