I upgraded my laptop to leopard a couple of weeks ago. Since then, or shortly thereafter (I'm not sure) the quick tap on the trackpad to click, and the two finger gestures for scrolling and secondary click stopped working. I checked the system preferences for keyboard and mouse. There are settings for trackpad gestures clicking, dragging and drag lock, the first two are selected. I think here should also be settings for two finger gestures but they're not here. Also I tried rebooting and upgrading the latest updates, but that didn't help. Any help is welcome.