Install Error!?

Hi, i get this error when i have installed punBB?

<?php

$db_type = 'mysql';
$db_host = 'mxxxxx.xxxxx.se';
$db_name = 'And_xxxxx;
$db_username = 'And_xxxxxx';
$db_password = 'xxxxxxx';
$db_prefix = '';
$p_connect = false;

$cookie_name = 'punbb_cookie';
$cookie_domain = '';
$cookie_path = '/';
$cookie_secure = 0;
$cookie_seed = 'b09xxxxxx';

define('PUN', 1);

The file 'config.php' doesn't exist or is corrupt. Please run install.php to install PunBB first.

And when i press install.php i get this?!

The file 'config.php' already exists which would mean that PunBB is already installed. You should go here instead.

Someone knows what the problem is?