The MousePad is toggled via the <FN> + <F7> key combination on an ACER ONE.
The first ACER ONE I had was sent back because the Mousepad stopped working
and I did not know why. I only had it a few days and the why they fail to
give even a basic few page manual until you go online and access it, I
didn't know that that key combo would toggle the mousepad. I called Newegg,
instead of any tech support, which I'm sure would have fixed the problem
they had me return it. Now I glad I did, the replacement has the bigger
battery so in the long run I did without a computer for a week or so but
ended up with a better one.