Starting the firewall

still got problems with the firewall. i installed the latest version. but when booting, i get error messages. so i disabled the firewall. the computer started without any error messages. i logged in and started the firewall by hand - no error messages; all is working as it should. so: how can i configure the 8.1 system to start the firewall after everything else has been initialized? and suse-config not modifying this preferences... dirk