TV component issue

Hi everyone!
i have an xbox 360 with a multi out video cable (composite, s-video, component out). on 2 different tv's, the component worked fine. so when i got a tv for my room, i was dissapointed. it was an old tube based tv, made by panasonic. on the back, i discovered it had 2 sets of composite, 1 s-video, and 1 component. so i hooked my xbox to the tv, and it got a picture, but there were 2 copies of the picture on the screen, with a thick black, white, then black again lines. it is currently playing in 480p, does not support anything higher. both the composite and s video work fine, but the component doesnt seem to want to cooperate. and yes, the video cable does work. anyone have any ideas?