Warning: Cannot modify header information

Warning: Cannot modify header information

Error message:

Warning: Cannot modify header information – headers already sent by (output started at /home/backinfi/public_html/wp-content/themes/backin5mins_2010/header.php:2) in /home/backinfi/public_html/wp-includes/pluggable.php on line 868

Solution

Caused by a line that was just a space in the config.php file at the bottom.  Deleting it fixed the error message.