Wondering if anyone can help me out with this, whenever I try to use update-manager I get this error. I was able to update the other day but now I seem to be getting this problem :
I am not sure how to go about fixing this as I never had this problem before. was hoping to update to 13.04 today
Failed to download repository information
Check your Internet connection.
W:Failed to fetch http://ppa.launchpad.net/piotr-zagawa/ma2/ubuntu/dists/quantal/main/source/Sources 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/piotr-zagawa/ma2/ubuntu/dists/quantal/main/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/piotr-zagawa/ma2/ubuntu/dists/quantal/main/binary-i386/Packages 404 Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.