Firefox users: Sometimes the "NEXT SECTION" button takes the browser to a random location in the publication, especially the first time it is pressed within the publication. If this happens, click on the "Table of Contents" link or select a chapter from the "Chapters" menu on the top right and then proceed to use the "NEXT SECTION" and "PREVIOUS SECTION" buttons. This should clear up the problem for that publication. You may need to do that for each publication. We apologize for the inconvenience and hope to resolve the issue soon.