请问，我在安装第一步的时候，就发现：

http://localhost/phpbb/install/i ... rements&language=en

Supported databases
Required - You must have support for at least one compatible database within PHP. If no database modules are shown as available you should contact your hosting provider or review the relevant PHP installation documentation for advice.

Firebird: Unavailable
MySQL with MySQLi Extension: Unavailable
MySQL: Unavailable
MSSQL Server 2000+: Unavailable
MSSQL Server 2000+ via ODBC: Available
Oracle: Available
PostgreSQL 7.x/8.x: Unavailable
SQLite: Unavailable

看上面的MySQL，没有找到，可是明明运行了MySQL5.1.11，还登陆进去过。是在我的Localhost.

试了几次安装，多是这样，是不是这个phpbb安装程序有问题？ 或者我有办法手动安装它？

谢谢。