I have Toshiba Satellite A665-143. Laptop has media control buttons, from the left: ecoUtility, Wifi, Illuminating, Play/Pause, Mute, Vol down, Vol up. When I unboxed laptop the keys worked like I mentioned above. Now, keyboard illuminates when I press "Mute" and the button which was responsible for illuminating opens TOSHIBA Bulletin Board application. How can I restore this functionality? I know that TOSHIBA Vallue Added Packege is responsible for this media buttons, I have reinstaled it, and nothing changed. Gusy help pls. Thank you in advance.