[syslog-ng]STATS: dropped 0

[Angelita Soares de Camargos]

Hello everybody.

I installed the syslog-ng 1.6.5, storing the logs in mysql 4.0.21 and 
it seems to be working fine, but sometimes I get this message at the log:
"STATS: dropped 0".

Reading older messages I understood that some log that did not match
any of my filters and was flushed.

Well, how can I know what message is it.
Below, a part of my syslog-ng.conf:

filter f_emerg { level(emerg); };
filter f_kern_info {facility(kern) and not priority(debug); };
filter f_user_info {facility(user) and not priority(debug); };
filter f_mail_info {facility(mail) and not priority(debug); };
filter f_daemon_info {facility(daemon) and not priority(debug); };
filter f_auth_info {facility(auth) and not priority(debug); };
filter f_cron_info {facility(cron) and not priority(debug); };
filter f_err {priority(err..emerg); };
filter f_messages{ not priority(debug); };

thanks in advance,
Angel.