Accepted Answer
When I open the adTempus 4 API documentation at http://documentation.arcanadev.com/adtempus/api/4.0/#Introduction.htm a message appears saying that the content cannot be displayed in a frame.
I am running IE 11.0.
Accepted Answer
This problem only affects the user comments that are supposed to display on each topic. We are working on a solution; in the meantime you aren't missing any other content.