A method for controlling the output of a switching power converter to account for high and low current loads is disclosed. An elongated brush running the length of the screen is disposed between two confining walls also running the length of the screen to form a chamber. The computer system may record position information arising from a first area of the base as graphical input while recording position information arising from a second area of the base as the selection of a property associated with the graphical input. The reinforcement tab is constituted by coating a surface of a pressed product with a conductive plated coating.