I'm using CentOS 4 x86 with perl-DBD-Sybase-1.07-1 installed. I tested using DBViualiazer to make sure the username and password I was using are correct and they are. I installed the plugins for NRPE and tried testing the check_sybase plugin but I get the following error message: [root@host plugins]# ./check_sybase -U user -P password -S <a href="http://my.hostname.com">my.hostname.com</a> -D dbname perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = "en_US", LC_ALL = "default", LANG = "en_US.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). install_driver(Sybase) failed: Can't locate DBD/Sybase.pm in @INC (@INC contains: /usr/lib/nagios/plugins/ /usr/local/nagios/libexec/ /usr/lib64/perl5/5.8.5/x86_64-linux-thread-multi /usr/lib/perl5/5.8.5 /usr/lib64/perl5/site_perl/5.8.5/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.4/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.3/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.2/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.1/x86_64-linux-thread-multi /usr/lib64/perl5/site_perl/5.8.0/x86_64-linux-thread-multi /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl/5.8.4 /usr/lib/perl5/site_perl/5.8.3 /usr/lib/perl5/site_perl/5.8.2 /usr/lib/perl5/site_perl/5.8.1 /usr/lib/perl5/site_perl/5.8.0 /usr/lib/perl5/site_perl /usr/lib64/perl5/vendor_perl/5.8.5/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.4/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.3/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.2/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.1/x86_64-linux-thread-multi /usr/lib64/perl5/vendor_perl/5.8.0/x86_64-linux-thread-multi /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl/5.8.4 /usr/lib/perl5/vendor_perl/5.8.3 /usr/lib/perl5/vendor_perl/5.8.2 /usr/lib/perl5/vendor_perl/5.8.1 /usr/lib/perl5/vendor_perl/5.8.0 /usr/lib/perl5/vendor_perl .) at (eval 1) line 3. Perhaps the DBD::Sybase perl module hasn't been fully installed, or perhaps the capitalisation of 'Sybase' isn't right. Available drivers: ExampleP, Proxy, Sponge. at ./check_sybase line 133 The line line 133 refers to the connection: $dbh = DBI->connect("dbi:Sybase:server=$dbsvr;database=$dbname;". How can I make sure the perl DBD Sybase module is correctly and fully installed? Thanks in advanced.