Your errors seem to be related to unremoved configuration files. See the /etc/ati/fglrx-uninstall.log file for details. You'll probably have to manually remove the files/directories that the log complains about (be careful) before you can cleanly reinstall fglrx.
Relevant errors: Removing fglrx-amdcccle ... dpkg: warning: while removing fglrx-amdcccle, directory '/usr/lib/fglrx' not empty so not removed. dpkg: warning: while removing fglrx-amdcccle, directory '/usr/share/ati/amdcccle' not empty so not removed. dpkg: warning: while removing fglrx-amdcccle, directory '/usr/share/ati' not empty so not removed. Unpacking fglrx (from .../fglrx_2%3a8.780-0ubuntu2_amd64.deb) ... One or more files have been altered since installation. Uninstall will not be completed. See /etc/ati/fglrx-uninstall.log for details. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/910604 Title: package fglrx (not installed) failed to install/upgrade: subprocess new pre-installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/910604/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp