When I run perl installer.pl I get this message. Do I have to do anything about this? PERL MODULES Checking perl modules ... Subroutine PDF::API2::Resource::Font::Postscript::O_RDONLY redefined at /usr/lib/perl5/5.8.8/Exporter.pm line 65. at /usr/lib/perl5/site_perl/5.8.8/PDF/API2/Resource/Font/Postscript.pm line 46 It also tells me I have to install gd::barcode but it is already installed.