Trouble with query logging

I'm having difficulty getting postgresql to log queries.

I have the following set in my postgresql.conf:

-------------------------------
# - Syslog -

syslog = 2          # range 0-2; 0=stdout; 1=both; 2=syslog
syslog_facility = 'LOCAL0'
syslog_ident = 'postgres'

log_statement = yes

-------------------------------

I've done a:

pg_ctl reload -D /usr/local/pgsql/data/

and have even done a restart, but queries are not getting logged (to
/var/log/messages).

(Error messages are getting logged, however.)

I also tried specifying a log file using -l when doing pg_ctl restart.

Using postgresql version 7.4.

Any suggestions much appreciated!