[syslog-ng] about syslog-ng 1.9.4+20050629 and log_prefix

hi everybody..... i have two problems first is when i execute syslog-ng-1.9.4+20050629 i got this message "getsockopt(SOL_SOCKET, SO_ERROR) failed for connecting socket; reconnect='10', error='Socket opreation on non-socket (88)'" could anyone tell me what's happened and how to resolve that? the second is in syslog-ng 1.6.x can i use log_prefix() in udp source driver? thx Regards coin