i stream movies from my laptop to my smart tv using HDMI, all of a sudden it dont work anymore. when i hook it up all i get is my back ground from my PC & sound from the movie no video. it does work on other tv's in the house just not this one. i know it is a TV problem but i just cant figure it out! can someone please help? the TV is a vizio 65" smart TV. I also tried other hdmi ports on the TV no change!