I have a Kensington iPod dock that I am trying to hook up to my Cube via iMic. I can go to the Sound preference panel, select the iMic as the input and see the levels moving on the input bar. I cannot, however, get sound to come out. I have the Harmon Kardon USB speakers + a USB Subwoofer running but nothing with the iMic selected as input. Is this possible? Thanks Jan Georgen