I came home the other day and powered my Vizio E291i-a1 on and the screen came on and had vertical lines on the screen. It powers up but no picture. Nothing has hit the screen being it was wall mounted. I can press menu key and on the left side of the screen, where the menu should be, a lot of verticals lines pop up there also. Can anyone please point me in the right direction with what could be the issue with this tv. I called Vizio and they mentioned it is the backlight, but doesnt a board power the backlight? Do backlights themselves go out like this? Please help me and thank you in advance.