[snip] could you please tell me what is the problem with this query mysql_query("SELECT * FROM mailbox WHERE read=''"); i always get this warning: Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in index.php on line 24 [/snip] THere is no apparent problem with the query, but there is a problem with mysql_num_rows(). Can you show us he code there? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php