Fresh install. Everything looks great. I went to Administration/Management/Rebuild Index and at the top of that page I get this...
Warning: Cannot modify header information - headers already sent by (output started at /home/.patti/*****/*****.com/forum/lang/English/common.php:1) in /home/.patti*****/*****.com/forum/header.php on line 17
Warning: Cannot modify header information - headers already sent by (output started at /home/.patti/*****/*****.com/forum/lang/English/common.php:1) in /home/.patti/*****/*****.com/forum/header.php on line 18
Warning: Cannot modify header information - headers already sent by (output started at /home/.patti/*****/*****.com/forum/lang/English/common.php:1) in /home/.patti/*****/*****.com/forum/header.php on line 19
Warning: Cannot modify header information - headers already sent by (output started at /home/.patti/*****/*****.com/forum/lang/English/common.php:1) in /home/.patti/*****/*****.com/forum/header.php on line 20
Warning: Cannot modify header information - headers already sent by (output started at /home/.patti/*****/*****.com/forum/lang/English/common.php:1) in /home/.patti/*****/*****.com/forum/header.php on line 23
*****=edited domain name.
Any ideas or a fix?
Here's the php for those lines stated above.
16-// Send no-cache headers
17-header('Expires: Thu, 21 Jul 1977 07:30:00 GMT'); // When yours truly first set eyes on this world! 
18-header('Last-Modified: '.gmdate('D, d M Y H:i:s').' GMT');
19-header('Cache-Control: post-check=0, pre-check=0', false);
20-header('Pragma: no-cache'); // For HTTP/1.0 compability
21-
22-// Send the Content-type header in case the web server is setup to send something else
23-header('Content-type: text/html; charset=utf-8');