Hi There Situation is as follows: I am running v4.1.2. of GB I just bought an XLR to USB cable I can successfully plug my digital piano into my GB and connect When I plug in the Electro Acoustic I get no sound or levels at all. Any ideas? Do I need a third-party piece of kit to make this work, I should think not as I can use my digi-piano just fine? Thanks in advance.