게시판 설치하고 웹페이지 디자인하고 올리니 아래와 같은 에러가 나옵니다.  
php를 업하라는것인지????? 버그가 있는것인지?????

Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0