바쁘신 시간에 들려주셔서 고마워요...

index.php 를 아래와 같이 수정을 했어요.
잘못된 부분을 지적해주시면 고맙겠어요.

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
<?
include_once("./_common.php");
include_once("$g4[path]/lib/latest.lib.php");

$g4['title'] = "";
if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가

include_once("$g4[path]/head.sub.php");
include_once("$g4[path]/lib/outlogin.lib.php");
include_once("$g4[path]/lib/poll.lib.php");
include_once("$g4[path]/lib/visit.lib.php");
include_once("$g4[path]/lib/connect.lib.php");
include_once("$g4[path]/lib/popular.lib.php");

//print_r2(get_defined_constants());

// 사용자 화면 상단과 좌측을 담당하는 페이지입니다.
// 상단, 좌측 화면을 꾸미려면 이 파일을 수정합니다.

$table_width = 1004;
?>

<!-- 메인화면 최신글 시작 -->
<?
echo "./main1.php"; // 이곳에 내용이 들어가면 됩니다.
?>
<!-- 메인화면 최신글 끝 -->

<?
if (!defined("_GNUBOARD_")) exit; // 개별 페이지 접근 불가
include_once("$g4[path]/tail.sub.php");
?>
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

결국은

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/common.php on line 8

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/lib/common.lib.php on line 109

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/head.sub.php on line 32

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/head.sub.php on line 34

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/head.sub.php on line 35

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/head.sub.php on line 36

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/head.sub.php on line 37

Warning: Cannot modify header information - headers already sent by (output started at /home/hosting_users/bufan/www/index.php:1) in /home/hosting_users/bufan/www/head.sub.php on line 38
./main1.php

이런 애러가 나군요...^^

봐주셔서 고마워요.