So the folder pane problem only occurs in the latest and greatest release of Outlook - 15.11. To get downgraded to 15.10, and not have any issues: 1. Download Outlook update here: https://support.microsoft.com/en-us/kb/3048682 2. Remove Outlook from your Application folder. 3. Install downloaded Outlook update (from step 1) 4. ??? 5. Profit!