I wanted to get better video with my 360 while playing standard DVD's. So, I bought the VGA cable. But, the picture is not better, it's worse. My TV (Mitsubishi WS-55511) is a few years old and I notice at the VGA port it says it supports resolution 640X480, 60Hz. To me, that seems low. Is it possible that connection my 360 to my TV with VGA is not going to work? Or, am I doing something wrong with the settings?