My system checks for updates daily and I always install all of them when they show up, This time three of them would not install. I got the following messages: W: Failed to fetch <a href="http://security.ubuntu.com/ubuntu/pool/main/p/pam/libpam0g_1.1.1-2ubuntu5.2_i386.deb">http://security.ubuntu.com/ubuntu/pool/main/p/pam/libpam0g_1.1.1-2ubuntu5.2_i386.deb</a> 404 Not Found [IP: 91.189.92.167 80] W: Failed to fetch <a href="http://security.ubuntu.com/ubuntu/pool/main/p/pam/libpam-modules_1.1.1-2ubuntu5.2_i386.deb">http://security.ubuntu.com/ubuntu/pool/main/p/pam/libpam-modules_1.1.1-2ubuntu5.2_i386.deb</a> 404 Not Found [IP: 91.189.92.167 80] W: Failed to fetch <a href="http://security.ubuntu.com/ubuntu/pool/main/p/pam/libpam-runtime_1.1.1-2ubuntu5.2_all.deb">http://security.ubuntu.com/ubuntu/pool/main/p/pam/libpam-runtime_1.1.1-2ubuntu5.2_all.deb</a> 404 Not Found [IP: 91.189.92.167 80] I am running Ubuntu 10.04 LTS - the Lucid Lynx - released in April 2010 and supported until April 2013. Do I need those updates, and if so, how do I get them? Thanks, Dan H.