intel3945-ubuntu11.04-无法启用－已断开－被硬件禁用

我电脑系统是Xunbuntu 10.04, 之前想安装一些perl的模块,就上CPAN上,说最好先按命令安装cpanm,于是我就照操作: cpan App::cpanminus,
中间有很多提问,比如where is your curl?等等 我都正确输入了,然后出现了what's your http_proxy? 因为新手啥也不懂我就随手输入了: sjtu,
结果现在一安装什么东西就出现下面的提示:

min@min-desktop:~$ cpan -i 'Text::Shellwords' # choose defaults if first time
CPAN: Storable loaded ok (v2.20)
CPAN: LWP::UserAgent loaded ok (v5.834)
Proxy must be specified as absolute URI; 'sjtu' is not at /usr/share/perl/5.10/CPAN/FTP.pm line 335

实在不懂什么意思,望各位高手大侠指点下啊..不甚感谢~!!!!!

absolute URI
proxy如果没有，应该留空。而不是sjtu....