I have an American Xbox and a PAL machine, the US box I have connected up via component to my Panasonic PD30 TV. I have set the Xbox in its menu setting to support 480 and 720 (although I have no idea if the pd30 supports it) and when I have done this the menu screen resolution has certainly improved. The problem I have is i really don't understand what 480 and 720 are. Are they they the scanline resolution and if so wouldn't just playing the PAL machine through component giving 520i be just as impressive as 480p? If the games dont support High Def are they displayed in 480i and again isn't PAL 525i more impressive?