I have the Macbook Pro 13". Since installing Snow Leopard, the touch to click on my touchpad doesn't work correctly at all. Need to touch sometimes several times or even just push the click pad to get the job done...this is in almost everything, from clicking on the desktop HD icon, to touching to click in all applications. Opening and closing, or choosing a pane in Powerpoint, or a photo in Iphoto to highlight. Hope there is a fix soon. As of now i have reinstalled Leopard because I can't navigate comfortably like this. As an aside, not sure I like the very dark contrast of the gamma 2.2 on this screen.