First, lets see if the distro is recognizing the touchpad.
Go to a console, and type the command
Code:
cat /proc/bus/input/devices
This tells the 'devices' file to display its contents. The file lists what devices are currently recognized on the computer. It includes your keyboard, any mice you have, speakers, etc.
Check if your Synaptics is listed. If it is, and it should be, then make a note of what devices are listed under its 'Handlers' section.
Also, if you could, post your '/etc/X11/xorg.conf' file please.
Sam