[Haskell-beginners] cabal-install: storing Hackage login

Hi. I am trying to use cabal-install build reporting functionality. I've put my username / password in my ~/.cabal/config file. Nevertheless, when I call the "cabal report" command, it asks me for my Hackage username and Hackage password. Is there something else I need to turn on in the config file so it will use the username/password combo in the config file? -- frigidcode.com