Loggin Out Error :(

Today at 4:10PM My Website said this
Warning: Cannot modify header information - headers already sent by (output started at /home/hazelboy/public_html/Forums/global.php:765) in /home/hazelboy/public_html/Forums/admin/functions.php on line 1614

Warning: Cannot modify header information - headers already sent by (output started at /home/hazelboy/public_html/Forums/global.php:765) in /home/hazelboy/public_html/Forums/admin/functions.php on line 1614

Warning: Cannot modify header information - headers already sent by (output started at /home/hazelboy/public_html/Forums/global.php:765) in /home/hazelboy/public_html/Forums/admin/functions.php on line 1614

Warning: Cannot modify header information - headers already sent by (output started at /home/hazelboy/public_html/Forums/global.php:765) in /home/hazelboy/public_html/Forums/admin/functions.php on line 1614

That what is says when i click on the log out after i have installed this hack

HACK: Change Style dropdown on ALL of your vB pages (dynamic, +1 query)
BY: KuraFire [www.kurafire.com]

I added new templates to all my styles, could that be a problem?

-Nem

[Xenon]

look into hacking hints and tips, Logician has posted a thread some time ago how to prevent these errors.