I guess that depends on what having jack installed entails. There is no package just called "jack," but I have "Jackd" installed (default server package), and "Jackd2" installed, which says it is the Jack audio connection kit (server and example clients). I also have "libjack-jackd2-0" installed, which says it is the libraries for the JACK connection kit. I installed all of these after I saw the errors trying to run Borderlands, but they did not change anything. Also, Wine is not configured to use JACK. -TennSeven
