hi. i own an lg rn-29fb51 tv. i would like to feed it s-video signal, so that i can watch videos stored on my laptop. so i got a cable with male s-video at one end (which went to my laptop) and male rca jack at the other (for my tv). i plugged it in, and instructed the laptop to send signal to second monitor. however, i only get a white screen on my tv. does any one know why, and how i can get the video to display on my tv. ~tia