I recently decided to try out Ubuntu 12.10 and it has been working fine so far.
However, yesterday I clicked on "About my Computer" and the button on the bottom right is telling me I can upgrade. When I click the button, I get the message that the software updater is checking for updates, it tries for about 5 minutes before telling asking me whether I have an internet connection or not (I do, I'm browsing the internet right now).
Anyway I can force it to connect and update? I haven't changed any of the Repo settings, and the updater was working until recently when I tried to upgrade today.
This is the error message I receive:
W:Failed to fetch http://ppa.launchpad.net/yorba/ppa/u...source/Sources 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/yorba/ppa/u...-i386/Packages 404 Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.