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I own Toshiba Satellite M645-S4050. There's 7 Touch Buttons top of the keyboard which includes Eco - Wireless - Led - Play/Pause - Mute - Volume Down - Volume Up. But only two of them are working, Volume down and vol. up. All of them are making sounds when I touched but no action! I uninstalled Toshiba Value Added Package (TVAP), rebooted the machine, installed TVAP then rebooted again. But nothing's changed. I reinstalled all Toshiba Utilities includes Assist and Flash Cards but same result. Also I unpluged the battery and AC adapter because of static energy possibility and choosed the default settings from the BIOS menu. Still same !
What am I supposed to do ? Witricity powered: explain witric..