TOC Entries in Responsive HTML5 won't Expand when Viewed Live
RoboHelp 11, exporting as Responsive HTML5.
When I view the result locally (either from my PC, on via another PC on our network), 'books' in the TOC expand correctly, when clicked upon.
In the example below, I've clicked the "Snapshots" book entry in the TOC. Notice that it expands to display its sub-topics.

However, when viewed from our Corporate web site (i.e. after publishing the content 'live'), TOC no longer function correctly. Using the same example as above, when clicking/pressing upon the Snapshots TOC entry, the screen flickers slightly, but nothing else happens - the menu does not expand.

There's a few of us here at work (including myself) that this was working properly last week. We're now wondering if our Systems Admin have disable a script or something. Any ideas?
Note that I've also tried deleting the contents of the live directory, and doing a fresh export from Robohelp, but we get the same result.
