Can you dump the table structure to show us how you've set it up? Bastien Cat, the other other white meat Yeah, that?s it: CREATE TABLE `ctalk_admin` ( `admin_id` int(9) NOT NULL auto_increment, `admin_nome` varchar(50) NOT NULL, `admin_login_nome` varchar(32) NOT NULL, `admin_pass` varchar(32) NOT NULL, `admin_login` int(10) NOT NULL, `admin_lastping` int(10) NOT NULL, PRIMARY KEY (`admin_id`), KEY `admin_lastping` (`admin_lastping`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; CREATE TABLE `ctalk_chat` ( `id` int(4) NOT NULL auto_increment, `id_admin` int(4) NOT NULL, `id_cliente` int(4) NOT NULL, `start_time` int(10) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; CREATE TABLE `ctalk_chat_mensagem` ( `id` int(4) NOT NULL auto_increment, `mensagem` varchar(400) NOT NULL, `hora` int(10) NOT NULL, `id_chat` int(4) NOT NULL, PRIMARY KEY (`id`), KEY `id_chat` (`id_chat`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ; CREATE TABLE `ctalk_cliente` ( `cliente_id` int(4) NOT NULL auto_increment, `cliente_nome` varchar(50) NOT NULL, `cliente_email` varchar(50) NOT NULL, `cliente_cpf` varchar(14) NOT NULL, `cliente_login` int(10) NOT NULL, `cliente_key` varchar(32) NOT NULL, `cliente_lastping` int(10) NOT NULL, `cliente_inchat` int(1) NOT NULL, PRIMARY KEY (`cliente_id`), KEY `cliente_lastping` (`cliente_lastping`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;