I've had my S2H from a coulple of months now but it got an intermittant problem with the sound. I hoped it would be one of those that resolves itself but doesn't seem like it will. Now and again, when I go to change the volume via the ZGemma box, the sound will completely cut out. It'll affect every channel and recordings and the only way to ge tthe sound back is to restart the box. It seems completly random, not related to any certain channel or time of day. A pain if in the middle of a recording. This seems to happen once or twice a day. Any ideas?