Access Denied

I’m attempting to install in a “blog” subdirectory on my hosting service, IXwebhosting, following the instructions. I set up the DB and apparently logged on successfully because I made it through step one of the installation with no problem.

Step 2, however gives me a long series of errors of the following sort:

WordPress database error: [Access denied for user: ‘ABC_DEF@%’ to database ‘ABC_ATBlog’]
CREATE TABLE wp_categories ( cat_ID bigint(20) NOT NULL auto_increment, cat_name varchar(55) NOT NULL default ”, category_nicename varchar(200) NOT NULL default ”, category_description longtext NOT NULL, category_parent bigint(20) NOT NULL default ‘0’, category_count bigint(20) NOT NULL default ‘0’, PRIMARY KEY (cat_ID), KEY category_nicename (category_nicename) )

It looks as though it’s telling me that I don’t have proper privileges, but that account (details changed here for security reasons) is an admin account.

Can anyone interpret for me and suggest what I should do.

Here’s the wp-config.php contents – again edited for security

<?php
// ** MySQL settings ** //
define('DB_NAME', 'ABC_ATBlog'); // The name of the database
define('DB_USER', 'ABC_DEF'); // Your MySQL username
define('DB_PASSWORD', 'xxxxxxxxx'); // ...and password
define('DB_HOST', 'xxxxxxx.ixwebhosting.com'); // 99% chance you won't need to change this value
// You can have multiple installations in one database if you give each a unique prefix
$table_prefix = 'wp_'; // Only numbers, letters, and underscores please!
// Change this to localize WordPress. A corresponding MO file for the
// chosen language must be installed to wp-includes/languages.
// For example, install de.mo to wp-includes/languages and set WPLANG to 'de'
// to enable German language support.
define ('WPLANG', '');
/* That's all, stop editing! Happy blogging. */
define('ABSPATH', dirname(__FILE__).'/');
require_once(ABSPATH.'wp-settings.php');
?>