My operating system is Mac OS X 10.3.9 so I can only download Google Earth 4.0.2736. I read that in order to have the streetview option, you need to checkmark it in your options but I dont see it anywhere in the options. Also, when I even try to view some of the streetview images uploaded by others on GoogleEarthHacks, I get a black screen with an X in its corner where the map should be. Help?