i write a page title containing Turkish characters in the title bar of the Internet Explorer and press enter. the page opened contains some other characters instead of turkish ones. in opera there is no problem. I have look in to source but can't understand what the function checkTitleEncoding does in Language.php and Languageutf8.php. $wgInputEncoding and $wgOutputEncoding is set to "UTF-8". How can i overcome this problem.