Touchpad issue with Inspiron 7348, Windows 8.1, no sensitivity adjustment for touch pad

My Windows 8.1 equipped 7348 has the touchpad freaking out quite a few times a day. Still in warranty but can't seem to get much of a response from Dell Tech Support. Tried their 'chat' but after waiting 45min. the touchpad freaked when I finally got someone on the other end... it ended up closing the window. No happy.

Anyone have an idea how to set the sensitivity on this thing to 'sledge-hammer'?