[Mediawiki-l] 1.3.3 Unicode problem

[koray]

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.