I just got a Barber Tone Press, and it is doing some wierd things... when I dig in a play with some strong attack, the signal cuts off entirely. I have to turn it off then back on again to get my sound back on. Sometimes if I only press down partially on the switch, it cuts in or out. I have been using the standard boss 9 volt adapter, and put a battery in it as well. Before I put the battery in, it seemed to have even more issues like this. Is it an issue of my power supply and/or battery?! Help!