Hi, It is confirmed that variable parameters we are using are not the one zabbix are using right now. The reason why DB_* vars are still working is for compatibility reason for older versions. Here you have the link:
http://www.zabbix.com/forum/showthread.php?t=11593 Michael, do you want me to report another bug about it or we can reopen this bug and fix it? I really appreciate your work. Very fast to be solved!! Regards.