I'm glad you could complete the upgrade. On the wifi problem if you believe it is a configuration problem then may be you can get help in some forum, for instance the guys at "General Help":
ubuntuforums.org/forumdisplay.php?f=331 are usually quite friendly. If you believe it is a bug you can open one against "network-manager": ubuntu-bug network-manager ** Changed in: update-manager (Ubuntu) Status: Incomplete => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/874793 Title: the update to 11.10 was not complete,and I'm left only half working,how can I go back or complete the instalation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/874793/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs