I have moved from Windows to Mac. On Windows, I was able to set the mouse sensitivity high so that I could move across the screen in a short movement (less than the width of a mouse pad). On the Mac (OSX 10.2.8), I have set mouse sensitivity to Max, but still it takes about full width of a mouse pad to cross the screen. Is there a way to increase the sensitivity, or do Mac users get used to picking up the mouse to reposition it all the time. I use a MS optical mouse.