Calendar doesn't display correctly in IE9 or IE10 with compatibility mode

Google supports all current browsers and previous releases of browsers. For Internet Explorer specifically, this includes support for IE9 and IE10, but not IE8. If IE9/10 is run with compatibility mode for IE8, users may also be experiencing issues loading Google Calendar. 
The fix is easy: Users can enforce the native state of IE9/10 by pressing Shift + F12 and selecting proper Browser mode and Document mode. This will force IE9/10 into the native mode and correctly display your calendar.
You can find more information about supported browsers at