hi all, i am relative new perl programming and also new to linux platform, i am running ubuntu8.10. i was running a freeware which contains a perl script. it generate an error: Use of uninitialized value $_[1] in join or string at /usr/lib/perl/5.10/IO/Socket/INET.pm line 117, <PPPD> line 1. there is no such files in my directory of /usr/lib/perl/5.10/IO/ thus i went to install: 1) sudo apt-get install libio-socket-inet6-perl 2) sudo apt-get install libio-socket-multicast-perl 3) sudo apt-get install libio-socket-ssl-perl 4) went to cpan website to install http://search.cpan.org/~gbarr/IO-1.25/ which this 4 option stated in my terminal that it had install /usr/lib/perl/5.10/IO/Socket/INET.pm however when i reboot my pc and went to check in the /usr/lib/perl/5.10/ it is still not there. thus i not sure what is happening? pls help. any help will be greatly appreciated.