今天安装最新版的Wordpress2.9，输入hi.hack520.org/wp-admin/install.php，结果出现错误提示：

Warning: Cannot modify header information - headers already sent by (output started at /home/hack0573/domains/hi.hack520.org/public_html/wp-config.php:1) in /home/hack0573/domains/hi.hack520.org/public_html/wp-admin/install.php on line 36

网上查了一下，都是UTF-8惹的祸！用Notepad++打开wp-config.php，保存为UTF-8无BOM格式编码，问题马上解决！