I have a CSS file that looks fine when I open it using gedit, but when it\'s read by PHP (to merge all the CSS files into one), this CSS has the following characters prepend
Check on your index.php, find "... charset=iso-8859-1" and replace it with "... charset=utf-8".
index.php
charset=iso-8859-1
charset=utf-8
Maybe it'll work.