I think I am experiencing the same thing as others who posted recently. The plugin was working great and then I clicked the upgrade button for the new version and not it is not functioning. The .png background changes when clicked but the box does not expand or contract. The site I am working on is http://trosperstorage.com The client expects the site to be complete today. :(
The only thing I see that has changed is that the id tags are now different when I view source.
On another note, the expand boxes on the documentation page are not working either. I have checked them out in FF and Chrome.