There is nothing so irritating as somebody with less intelligence and more sense than we have
– Don Herold
Problem
Microsoft Internet Explorer is displaying ' while other browsers are displaying a single quote.
Solution
IE has apparently decided to follow standards on this rule, but once again didn’t follow the crowd. ' is not in the HTML 4 standards. So instead use '.
Source: http://nedbatchelder.com/blog/200703/random_html_factoid_no_apos.html
search terms used: ie '