MyBB Community Forums

I get this message in each forum after editing files to get the youtube button in new post window.

Warning: Cannot modify header information - headers already sent by (output started at /customers/global-ecstasy.com/global-ecstasy.com/httpd.www/forums/inc/languages/english/global.lang.php:1) in /customers/global-ecstasy.com/global-ecstasy.com/httpd.www/forums/inc/functions.php on line 1171


What can I do?

Use a decent text-editor; no NotePad.
Get a fresh global.lang.php from the MyBB Site and do the required changes with WordPad or http://community.mybboard.net/showthread.php?tid=24769