Do (key, value) pairs that are mq_add()'d have to be unique? If not, what exactly is the reason for the existence of a 'key' and a 'value' as opposed to just mq_add("some_q", "some data"); ? Thanks, -- Alex Balashov - Principal Evariste Systems LLC 1170 Peachtree Street 12th Floor, Suite 1200 Atlanta, GA 30309 Tel: +1-678-954-0670 Fax: +1-404-961-1892 Web: http://www.evaristesys.com/