If you use Internet Explorer 11 you will need to add pinnacle.com to the compatibility settings.

To do so, please follow these instructions:

1) At the far upper right hand side of the browser, there is a "gear" icon. Clicking that icon brings down a menu.
2) There is a menu item called "Compatibility View Settings". That menu item displays a pop up.
3)  Type pinnacle.com under "add this website" and make sure that the check box "Use Microsoft compatibility lists" is checked.
4) Click the "Add" button.
5) Click "Close".
6) Restart your browser.