in reply to SOLVED: Funny Little Permissions Issue on Ubuntu
You may have to remove|edit any existing CPAN configuration lying around which causes the cpan shell to install things under /root/perl. Specifics would be provided by those who have used cpan more extensively.
If you are installing things on system wide basis, then for all practical purposes do not install in /root or include /root in @INC.
Do you see /root/perl in @INC when you run perl as mere mortal, after fiddling with PERLLIB? Does your shell suppose to source /etc/profile (bash & zsh do; could not find it in tcsh man page)?
BTW, your @INC seems to be missing architecture specific directories. Did you change install settings to not to create, or install in, those directories?