Hellowp, im new in php language... anyway...

I create somehting like small-forum, check it please...

And this is php code do refresh-navigate

 header( 'Location: http://codetesting.atwebpages.com/forum.php' );

When i press button "Create Thread" then messsage stored to database and load forum.php, in IE it show my new message directly, in GChrome i must refresh :/

so what is solution about this "bug"

Remember that before header() there should be no echo.
If there is you can use a tweak at the top of your page just put ob_start(); and at the end of the page ob_flush();