The touchpad stops working randomly when the computer is woken back from sleep and it has to be rebooted to get it going agin. An externally connected mouse will work fine during that time. Is this due to a possibly faulty touchpad??
It is possible to be a defective touchpad. I would suggestion a few things you can try on your own before looking into service options.
If you continue having issues, contact your local Acer support team so that they can help setup services to take care of the touchpad issues you're having.
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