No apparent reason...just stopped. Windows vista did one of its updates then it restarted my computer. When it restarted was when the touchpad stopped working. I am using a plug in mose now and it works fine. I have restored my system to a date previous of the updates, still nothing.
In Device Manager, there is no tap and click or anything similar. It just shows the mouse, which doesnt help.
I,m not able to see the driver or check if its installed correctly because it isnt where it should be in the human interface area of device manager.