QUOTE
Yes, but I assume you set your eeprom to NTSC mode, therefore the game should switch to 480p, otherwise if it was true PAL it would be 576p.
I live in the US, so my xbox is already running NTSC i guess. I'm not sure what resolution it runs at when its running the PAL games, maybe 576p instead of 480p, i cant really tell, my monitor just plays them is all i know.
Like Jameson said, i have my cable set to component mode so it doesn't display in 640x480, it displays in normal hd resolutions.
All i know is my monitor doesn't support 480i and probably 576i if that exists, but it does support 480p and higher and i can play those games on my monitor. Hope this helps.