when trying to retrieve a URL I get the following error:
$ perl -MWWW::Mechanize::Shell -eshell
Module File::Modified not found. Automatic reloading disabled.
(no url)>get http://news.bbc.co.uk
Retrieving http://news.bbc.co.uk(200)
Can't call method "agent" on an undefined value at /home/<user>/perllib/lib/site_perl/5.8.6/WWW/Mechanize/Shell.pm line 310, <FIN> line 1.
I'm not sure how to resolve it.