4 machines died on me in the space of 2 months. you and i are still here, but perhaps the machines were mayan? well none of them were exactly new. and then my 9yo daughter looks shocked and says the computer buzzed her. i touch what she touched, floor grate and computer chassis, and buzzo. so perhaps improper grounding might be a factor in mobo deaths? and/or other power faults? what do any of you recommend? a certain test gizmo? city of saint paul electrical inspection?