[syslog-ng] use_fqdn()

hi, Just putting together a config file for syslog-ng-1.2.3 on solaris and it doesn't appear to like the line: options { use_fqdn(yes); }; I've tried different options and all numerical ones are excepted ok. Options with accepted values described as 'yes' or 'no' in the documentation cause the deamon to fail on start-up. Have I got the syntax wrong? Do I need a newer version to enable this feature? If so, Is there a different option that will give me the full domain name in this version? thanks, graham