I have the Magic Mouse that comes with the iMac. I'm trying to like it, but it takes some getting used to. On thing that bothers me is the travel. Is there a way to scale the travel? I have to move the mouse way too far on my desk to get the arrow to move across the screen. For example, if I move the arrow from the top left to bottom right of the screen, the mouse on my desk has to be moved almost 8 inches. I'd like to cut that in half. Is there anyway to do that?