With KDE4 the the configuration tool is now in: Configure your desktop, System Administration, Lost and Found, Touchpad. To see if it installed and running look in: Configure your desktop, System Administration, Startup and Shutdown, Service Manager. In the window on the lower right side ( Startup Services ) scroll down and see if synaptics is listed and if it running. If it is not running, check the box and start it. If is not there I would try reinstalling it from the Package Manager. Sorry I couldn't help more, I know just enough to get in trouble. jd