[ubuntu] Can't update my system

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http://ubuntuforums.org – Hi all, I am new in Ubuntu and I have seen that Ubuntu didn't install my graphics driver when it's set up. I searched for Internet and it recommended me to add a source link through Ubuntu Software Center.(http://ppa.launchpad.net/xorg-edgers/ppa/ubuntu) After adding it update manager has detected some but gives an error(Attachment 1). When I click on 'Partial Upgrade', and enter my password, it gives another error(Attachment 2). What is the problem? Attached Images Screenshot from 2013-01-01 18:03:35.png (25.3 KB) Screenshot from 2013-01- (Hardware)