I would like to add to the previous comment. The following message was displayed when I ran apt-get update once again.
The following packages have been kept back: evolution-common evolution-plugins libgl1-mesa-dri libgl1-mesa-glx xserver-xorg-core -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/884152 Title: Error: Marking the upgrade (from 11.04 to 11.10) - unresolved package dependencies To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/884152/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
