loud humming

Hi, This is my first PRS guitar and my first post. This guitar is a week old. Since I got it I hear a humming or buzzing from the pickups. If I put my finger in the strings it stops. If I put my finger on the screw that adjust the pickup height the humming gets louder. It happens in humbucker...

My China guitar hums loudly when both guitar outputs are plugged into amps. Tried ground lifts, different cords, different wall outlets, etc. No noise when only using either of the single guitar outputs. I am very disappointed. Like the look, feel, finish, and sound (when no hum) and want to...