When logged into NetCommunity as a supervisor or with an account that has edit/admin rights, all pages are being accessed via https:// rather than http://, regardless of the page content and whether "Require SSL for all pages" is selected in Administration > Sites & settings.
This is causing a mixed contenet dialog box to pop up in Internet Explorer every time we click to go to another page on your site.
To test, log out of your admin account and visit the page. If a login is required to view the page, log in as a non-admin user. You should no longer see the mixed content message.