Just bought the 360 and set the machine up to a Toshiba LCD through the component leads supplied. On the page where you can determine the setting it says im currently set at 480p but when i switch to 720p the screen fills with lines and the pic isnt clear...why?? This means that i can only play at the mo through 480p which still looks great but i want it at 720p ...... The TV im playing it through is a Toshiba 23 WLT56B LCD which runs at 1280x720 so , any suggestions????????