i have a Vizio 37 inch LCD. The model number is vx37l. Last night it made a cracking and grrr sound and then turned off. I tried to turn in on but the screen is blank but then light on the Vizio(label) is on. i tried unplugging it and plug it back in but it didn't matter. Any suggestions? the answer i got from one of the service man is it might be the board. i am looking forward in fixing it myself. thanks