Hi, I can't get my analog line out to work. I first had a problem with sound in general then I was able to get the speaker to work because it wasn't plug in. Does it matter about the cable and which to use? Also can the jack get loose or something? I got this G5 used and don't have discs. OS X 10.5.8 1.6 GHZ 1.5 GB RAM with Apple Cinema Display 17" ADC and Samsung 19" Widescreen monitor thanks for the help. receiver is Sherwood RX4109 with works with my Compaq.