I also am having a problem with Idaho, Nevada, as well as Arizona. I've tried it with Chrome, Internet Explorer, and Firefox with the same result. In the case of Idaho I get a 9KB file called "idtopo_install.exe". Arizona is a 9KB file called "1-3394-aztopo_install.exe" and Nevada is 9KB file called "nevada_1.0_install.exe" In all cases trying to run them give an error message of "path/filename.exe is not a valid Win32 application."