hi i recently bought a lg 42lc46 tv from a local auction i bought it home and i couldnt get a picture led light went from standby to flashing green 6-7 times i looked on other forums said about it might be the power supply so i changed that same problem then i changed the lvds board still nothing so i changed the main board great tv works in a fashion the picture has a spasm for about 10 minutes shoots little lines of all different colours then fine i can watch tv but my main problem now is when i plug my xbox into hdmi it completely throws out the idea of trying to get a picture up at all i tried the xbox in the red white and yellow outputs and i get a ok picture on like my friend list where there isnt much colour but if i try to run a game or even stay on the home screen it completely goes screwy any help on this as i can only think it might actually be the lvds - main board wiring but i dont have a clue first tv ive tried to fix ever and im already in to the tv for about £185 which isnt great but not too bad anyone have any pointers now as ive nearly given up