I am trying to connect my Laptop to my TV with an HDMI and its not working i tryed the recommended stuff witch is powering dow both things and turning TV on and then Laptop that didn't work i dont know why but it says theres No Signal, the cables are connected as good as they can be i tryed switching them arround nothing happend... I am thinking i need drivers or something but i didn't have any before and it worked so i dont get it, Please help me ;_;