[ubuntu] Can't install Steam In 12.10

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http://ubuntuforums.org – I receive the error in the attached screenshot when I click the Steam .deb I've tried following and using suggested terminal commands from the valve wiki for Linux (Ubuntu 12.10 in my case), still to no avail Steam for Linux wiki This is the output/error(s) I receive when running the commands via Terminal Code: ubuntu@ubuntu:~$ ubuntu@ubuntu:~$    sudo add-apt-repository ppa:abhshk-btra/rotatingcanvas You are about to add the following PPA to your system:  Open source contributions by Rotating Canvas. http://www.rotatingcanvas.com  More info: https://launchpad.n (Hardware)