I noticed the problem as well, and changed my apt.conf to reflect the changes posed by cvrse.
This was on a fresh install of Dapper (server cd). Apt-proxy wasn't working even for the local machine. Once I changed the apt.conf, all was good. -- Incompatible with full URL HTTP requests from recent apt versions https://launchpad.net/bugs/46776 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs