usually happens when you disable your touchpad and then suspend your computer. to fix this just run this command:
gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true
usually happens when you disable your touchpad and then suspend your computer. to fix this just run this command:
gconftool-2 --set --type boolean /desktop/gnome/peripherals/touchpad/touchpad_enabled true