-deb http://security.ubuntu.com/ubuntu dapper-security main restricted
-deb-src http://security.ubuntu.com/ubuntu dapper-security main restricted
-
-deb http://us.archive.ubuntu.com/ubuntu dapper-updates main restricted
-deb-src http://us.archive.ubuntu.com/ubuntu dapper-updates main restricted
+# Uncomment if you want the apt-get source function to work
+#deb-src http://http.us.debian.org/debian stable main contrib non-free
+#deb-src http://security.debian.org stable/updates main contrib non-free