In Windows XP (English version) you can view non-roman-alphabet letters such as Chinese and Arabic characters on websites and documents but if you install a non-English program all the characters show up as "??????????????" in the program which make it unusable. I wonder what's it like on Mac OS X? and is it possible to make the OS display in an entire different language? Kind of like a mobile phone where I just go to the language setting and turn the entire interface into French or say Japanese?