I use Mint for a blog where many of the post titles include French words with accented characters. In Mint, these accented characters appear malformed because Mint uses iso-8859-1 character encoding in it’s HTML header. I was able to fix the problem and get the characters to display correctly by switching to utf-8. So, in /mint/app/includes/head.php you would change
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
to
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
It’s a simple fix, but I thought the tip might be useful to other folks.