Hi, all I use nagios 1.x to monitor my network, it works greatly. Now I want to upgrade nagios to 2.0b4. So I just set up a new nagios server with nagios 2.0b4 package, and copy all configuration files from old nagios server to new server and edit all configuration files to make them have correct syntax for nagios 2. Every thing is fine except one problem. I use check_snmp_apcups plugin to monitor my ups. It works very fine in nagios 1.x, but in nagios 2.0b4, it always tell me an error "**ePN failed to compile /usr/lib/nagios/plugins/check_snmp_apcups: "Global symbol "$script" requires explicit package name at (eval 5) line 23,Global symbol "$script_version" requires explicit package name at (eval 5) line 31." I checked the file, it's OK, it looks like this $script = "check_snmp_apcups"; $script_version = "2.1.0"; and these global symbol are useless in the check_snmp_apcups. The script only call them when display the help messages. I configure my UPS_services like /usr/lib/nagios/plugins/check_snmp_apcups -H <a href="http://192.168.0.10">192.168.0.10</a> I can run this command manually and get the correct reslut. but nagios server couldn't. nagios.apache is the owner of the check_snmp_apcups So, anybody can give me some idea to resolve this problem? Thanks