and if you use the button PC with the lock (4th button from left on top) the tv screen is going to black but x6 has still blue led and you have to take the power plug out! and if you use the button PC with the circle and the line on top (5th button from left on top) nothing happened and most of the "special keys" are not usable as well and you cannot use the keyboard to "cut and paste" textpassages, because you cannot highlight any text
