Originally Posted by rfarris

Failed to fetch http://security.ubuntu.com/ubuntu/di...ce/Sources.bz2 MD5Sum mismatch
Failed to fetch http://security.ubuntu.com/ubuntu/di...6/Packages.bz2 MD5Sum mismatch
Reading package lists... Done
W: GPG error: http://moblock-deb.sourceforge.net feisty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY CB53C4079072870B
W: You may want to run apt-get update to correct these problems
E: Some index files failed to download, they have been ignored, or old ones used instead.
rfarris@Peon:~$ sudo apt-get install moblock-nfg
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package moblock-nfg
rfarris@Peon:~$