제가 좌측메뉴를 달았거든요. 딴곳에서는 잘돌아가는데 꼭 회원가입창 옆에과 다음 아이디 비밀번호 만드는 창만 오류가 떠요 어떻게 해결해야할까요?
Warning: include_once(./left_menu.php) [function.include-once]: failed to open stream: No such file or directory in C:\APM_Setup\htdocs\gnuboard4\head.php on line 134

Warning: include_once() [function.include]: Failed opening './left_menu.php' for inclusion (include_path='.') in C:\APM_Setup\htdocs\gnuboard4\head.php on line 134