Designate the USI Blackboard site as a "Trusted" site (Internet Explorer only).
Internet Explorer will allow you to place sites in a "Trusted" zone where the security settings are much less restrictive then they normally are. Placing the USI Blackboard site on this list has fixed a number of access issues that occur due to restrictive security settings.
To set USI Blackboard as a "Trusted" site, go into the "Internet Options" area of IE (Tools > Internet Options) and click the "Security" tab. Then click the "Trusted sites" icon and then the "Sites" button. If the box next to "Require server verification (https:)..." is checked, uncheck it then type "bb.usi.edu" into the "Add web site to this zone:" area and click the "Add" button. "bb.usi.edu" should then appear in the "Web Sites:" area. Click "Ok". Blackboard is now a "Trusted" site.
You should be back at the "Security" tab screen and "Trusted Sites" should still be highlighted. You will now want to verify that Blackboard is running the least restrictive security settings. Click the "Default Level" button. The security level should read "Low". If it does not, drag the slider down to "Low" and then click "OK". Close all browser windows and restart the browser and try accessing again.