탭이동하는 바다님의 최신글 스킨관련해서 waring이 납니다.

<?
include_once("./_common.php");
include_once("$g4[path]/lib/latest.lib.php");
include_once("tap_menu.php");
echo latest("basic_bada", "qna", 5, 25);
?>
게 삽입했어요.

그런데 화면에
Warning: Cannot modify header information - headers already sent by (output started at C:\ocean\gnuboard4\index.php:11) in C:\ocean\gnuboard4\head.sub.php on line 55

Warning: Cannot modify header information - headers already sent by (output started at C:\ocean\gnuboard4\index.php:11) in C:\ocean\gnuboard4\head.sub.php on line 57

Warning: Cannot modify header information - headers already sent by (output started at C:\ocean\gnuboard4\index.php:11) in C:\ocean\gnuboard4\head.sub.php on line 58

Warning: Cannot modify header information - headers already sent by (output started at C:\ocean\gnuboard4\index.php:11) in C:\ocean\gnuboard4\head.sub.php on line 59

Warning: Cannot modify header information - headers already sent by (output started at C:\ocean\gnuboard4\index.php:11) in C:\ocean\gnuboard4\head.sub.php on line 60

Warning: Cannot modify header information - headers already sent by (output started at C:\ocean\gnuboard4\index.php:11) in C:\ocean\gnuboard4\head.sub.php on line 61

잔뜩 이런오류가 납니다.