You can do this manually by editing xorg.conf:
Code:
gksudo gedit /etc/X11/xorg.conf
Find the section that looks like this:
Section "InputDevice"
Identifier "Synaptics Touchpad"
Driver "synaptics"
Option "SendCoreEvents" "true"
Option "Device" "/dev/psaux"
Option "Protocol" "auto-dev"
EndSection
Add the following options before EndSection:
Option "MinSpeed" ".1"
Option "MaxSpeed" ".3"
Option "AccelFactor" ".0017"
Save the file and restart your x server using ctrl+alt+backspace. Tweak the settings as you see fit. In the future please search the internet for simple questions like these before posting on these forums.