Your+sound+went+out


 * Check the USB connection
 * Check the volume knob on the Promethean board
 * Check to make sure the button on the side of the Promethean board is green and not red - if it's red, press the button
 * Check the volume on your computer in your CONTROL PANEL under sound
 * Check to see if the Promethean board is your DEFAULT sound device. (Sounds and Audio Devices - Properties - Audio tab)