Like the tablet light thingy on the top left corner lights up and blinks once but when I touch the pen to the tablet surface, nothing happens! The buttons on the side of the tablet work perfectly fine, it's just the pen isn't working! It used to work without a problem at all but now it doesn't work at all! I don't know what to do and I really REALLY wanna draw with it again cause there's no way I wanna go back to using the mouse pad! Please please PLEASE help me with this cause I really don't want to have to stress out over something stupid like this!