The View of my map seems to only display vertically in half screen size, i.e. its width is fine, but its height is only half the screen, with the donation link, copyright and logo links half way down the window instead of at the bottom of the window (in both IE8 & Firefox12). Plus I don't see your disk icon anywhere. Am I doing something wrong? Thanks.
There is a little "View this map full screen" button just below the map. The button is tiny, not labeled (unless you hover your mouse over it), and has a non-intuitive icon of a grey rectangle with a black square in the center. (They did a good job hiding the button.) It is located between the Help button (with a question mark icon) and the Share button (with an envelope icon).