Thanks for the input, this was a problem that just seemed to appear, although i did just switch amps that I was playing this guitar with, but what puzzels me is that the buzzing stops when you unplug the cable from the acoustic output, and then the electric output works great, im asuming that power to the piezo board is cut when there is no cable plugged into the output, let me try to explain the problem better, if you use the piezo output only no electric hooked up, that works fine, when you use only the magnetic output by itself that works fine, only when you have cables going out from the piezo say to a pa, and a cable going from the magnetic say to a amp, you get the very bad buzzing from the magnetic that is being amplified by the amp, how can I find ground loop problems ?