il problema persiste.....

scusate ancora, ma il problema persiste.....
quando provo a creare un menu' ho sempre il messaggio:

user error: Access denied for user 'mio_user'@'localhost' to database 'mio_db'
query: LOCK TABLES sequences WRITE in ...../includes/database.mysql.inc on line 66.

warning: Cannot modify header information - headers already sent by (output started at ...../includes/common.inc:384) in ...../includes/common.inc on line 192.

ma cosa sta' succedendo ?

Gianni