Thanks for your bugreport. It looks like you installed unofficial nvidia packages and that confuses the update tool. Can you please try installed the official version again and retry?
Thanks, Michael ** Changed in: update-manager (Ubuntu) Status: Unconfirmed => Needs Info -- Calculation error while attempting to upgrade from dapper to edgy eft https://launchpad.net/bugs/98863 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs