Quote Originally Posted by thedoctor81877 View Post
Oh, now I see those lines

# deb http://archive.canonical.com/ [distro] partner
# deb-src http://archive.canonical.com/ [distro] partner
but they are hashed out. So, should I uncomment them? I am feeling really stupid [concerning Ubuntu and Linux in general] at the moment, and please forgive me missing obvious things.

Thanks for all your patience and help!!!
No,leave them with the # so they don't cause further problems.Or delete them from the sources.list file.

W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ quantal/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_quantal_partner _binary-i386_Packages)
W: You may want to run apt-get update to correct these problems
I think that problem is caused by the [distro] line being in sources.list and has left an incorrect file in your .list files.

To correct the error,open a terminal and run
sudo rm /var/lib/apt/lists/* -vf
to delete the .list files and then run
sudo apt-get update
to reload the .list files.

Good Luck