Volume control buttons not working?
I have an HP Pavilion dm4-2070 laptop. All of a sudden, the mute button and the buttons to make the volume go up and down stopped working completely. When i press the up/down buttons they act like a combination of arrow keys and the escape key. The mute button does nothing except for light up when I mute the volume manually in the settings. does anybody have any idea what's wrong and how I can fix it?