One thing I noticed is you have dapper-security listed twice in your /etc/apt/sources.list file. Please remove one set of "deb http://security.ubuntu.com/ubuntu dapper-security main restricted universe multiverse deb-src http://security.ubuntu.com/ubuntu dapper-security universe multiverse". Then run 'sudo apt-get clean' to clean out '/var/cache/apt' then 'sudo apt-get update' and finally 'sudo apt-get upgrade'. Hopefully that will resolve your issue.
-- upgrade to 6.10 fails with page fetch failure https://launchpad.net/bugs/83368 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
