If you use the Smoothwall online help a lot, some of the files get stored in your browser's cache. If it doesn't display correctly, it could be that you need to clear your browser's cache and hard reload the page.
In Chrome, the easiest way to do this is to right-click the page and click Inspect and then right-click the Reload this page button and click Empty Cache and Hard Reload.
For other browser types, see your browser's help documentation to see the best way to do this.