WordPress database error: [Unknown character set: 'UTF']

Hello,
after updating wp-config.php with my datas,
define(‘DB_NAME’, ‘wb46103’);
define(‘DB_USER’, ‘wb46103’);
define(‘DB_PASSWORD’, ‘xxxxxxxx’);
define(‘DB_HOST’, ‘localhost’);
define(‘DB_CHARSET’, ‘UTF-8’);
define(‘DB_COLLATE’, ‘localhost’);

define(‘AUTH_KEY’, ‘put your unique phrase here’);
define(‘SECURE_AUTH_KEY’, ‘put your unique phrase here’);
define(‘LOGGED_IN_KEY’, ‘put your unique phrase here’);
define(‘NONCE_KEY’, ‘put your unique phrase here’);

I tried to install WP by running wp-admin/install.php with Chrome or IE8 and I always get trouble :

WordPress database error: [Unknown character set: ‘UTF’]
CREATE TABLE vd_terms ( term_id bigint(20) unsigned NOT NULL auto_increment, name varchar(200) NOT NULL default ”, slug varchar(200) NOT NULL default ”, term_group bigint(10) NOT NULL default 0, PRIMARY KEY (term_id), UNIQUE KEY slug (slug), KEY name (name) ) DEFAULT CHARACTER SET UTF-8 COLLATE localhost

for all tables ???

I’va installed WP in the server within this structure : /SiteWP/
/SiteWP/wp-admin/
/SiteWP/wp-content/
//SiteWP/wp-includes/

What can I do ?
Thank you for your help.
Regards
Escarlate