Hi to all, +----------+---------------------+---------------------+-----------------+ | UserName | AcctStartTime | AcctStopTime | AcctSessionTime | +----------+---------------------+---------------------+-----------------+ | pepe | 2005-12-02 16:24:45 | 2005-12-02 16:25:46 | 63 | | pepe | 2005-12-02 16:26:23 | 2005-12-02 16:27:12 | 52 | | pepe | 2005-12-02 16:29:02 | 2005-12-02 16:29:09 | 9 | | pepe | 2005-12-02 17:43:37 | 2005-12-02 18:03:32 | 1197 | | pepe | 2005-12-02 18:09:16 | 2005-12-02 18:15:45 | 391 | First line should be 61 Second line should be 49 Third line should be 7 etc. In some rows there are even bigger differences, shouldn´t be AcctSessionTime the difference of AcctStopTime - AcctStartTime ? Thanks in advance, Ezequiel. -- Ezequiel O. Block Cooperativa La Lonja, Servicios de Internet. T 02322-474537 F 02322-470406 E ezequielb@pilar-ciudad.com.ar