For IE9 users - IE9 is supported, but it's Compatibility View feature is not. The fix is simple - turn off Compatibility View mode. Here is how:
- Select Tool form the Menu Bar (if it's not visible, press Alt on your keyboard).
- Select Compatibility View Settings. A panel will open. Uncheck all 3 options at the bottom of the panel.
- Select the Close button to save your changes.
- Reload the page, and enjoy.
Your browser needs a tune up...