I have just come back from living in the USA where I bought a Sony 46XBR5 full HD TV. I have fitted it up to a Virgin HD set top box through a HDMI cable. I can get sound but no picture. It is 110v-240v, so power is OK. My son has fixed his PS2 to it and gets a good picure. Can anyone help me get a picture on this lovely TV? Should I just pay Sony to fit a new engine into it?