What to do when the reviewing "balloon" comments in Microsoft Word 2010 are too small to read

Sometimes when multiple users share documents in Microsoft Word 2010, reviewing comments and formatting changes will be turned on and show up as balloons to the right of the page. Sometimes a user will receive a Word file in which the balloon text is suddenly way too small to read as pictured below.




First you must click on the Home tab as circled below.



Next you must find a very