Header error

[rdsnetworks]

Hi all.

I am getting this error what can be the possible cause?

 
Warning: Cannot modify header information - headers already sent by (output started at /home/p/public_html/includes/classes/boxes.php:361) in /home/p/public_html/includes/functions/general.php on line 33

Thanx

[Guest]

The most common problem that gives the "headers already sent" message is an extra blank line before the <?php or after the ?>

Look for excess white space

[Paul Burke]

The most common problem that gives the "headers already sent" message is an extra blank line before the <?php or after the ?>

Look for excess white space

 

I had this problem just today also, and it seems to be effecting multipple files

 

Warning: Cannot modify header information - headers already sent by (output started at /catalog/includes/languages/english/modules/payment/moneyorder.php:18) in /catalog/includes/functions/general.php on line 29

 

This is the fourth error, I fixed the first three by removing extra spaces at the end of the the files, but it keeps happening with other files.

 

I had modified languages/english.php and a few other language files a few days before with the "define languages" tool . Even after removing the extra spaces from that file, it seems to be cascading through all the language files, even ones I didn't change (that is, I remove the extra spaces from one file, it works but then the next language file hit doesn't work, same problem, fix it, then the next doesn't work).

 

Is there a "root" language or other file that I should fix that would fix it for all... maybe index.php or...?