Laptop touchpads get in the way of typing quite often and can actually cause accidental highligh and deletion when such a thing is not intended. This workaround inserts a small delay in the response of the touchpad after typing:
sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup sudo vi /etc/X11/xorg.conf
Into the "Synaptics Touchpad" section insert the following:
Option "SHMConfig" "on"
Start the syndaemon automatically during startup: Open System -> Preferences -> Sessions and add the following:
syndaemon -i 1 -d
Finally restart Gnome.