kansasnoob said: Is this just a temporary thing?
Failed to fetch http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt/dists/all/main/binary-i386/Packages.gz Hash Sum mismatch
Some index files failed to download, they have been ignored, or old ones used instead.
yes - takes some time for all the files uploaded to propagate to all mirrors... so if you happen to do an apt-get update shortly after a fresh upload, you'll get that. if you get it, just wait another few minutes, and try an apt-get update again, and problem should go away.