I keep getting this when i click on the check for updates. I am sorry if i have put this in the wrong place. right now i am running the Gnome side of Ubuntu 11.10 and in the bottom right side i have an icon that keeps telling me i have updates but there seams to be none or i get this message any one have any ideas ?? big time noob by the way. thanks for any help i can get. Dave W:Failed to fetch http://ppa.launchpad.net/team-xbmc/ppa/ubuntu/dists/oneiric/main/source/Sources 404 Not Found , W:Failed to fetch http://ppa.launchpad.net/team-xbmc/ppa/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found , W:Failed to fetch http://ppa.launchpad.net/sevenmachines/flash/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found , E:Some index files failed to download. They have been ignored, or old ones used instead.