tony722I had the same problem and downloaded the old driver for the touchpad version 7.1211.101.114, A00
And it fixed it! Image may be NSFW.
Clik here to view.Tony
P.S. I think that's what fixed it. I played with a few other things in between so let me know if it works for you. Thanks!
Thank you Tony722! This fix worked for me! Image may be NSFW.
Clik here to view.
Image may be NSFW.
Clik here to view.
Clik here to view.

Clik here to view.

What a dream! Now it feels more like Mac (who actually gives you a choice to enable/disable invert scrolling)
EDIT: How comes Dell doesn't know this themselves? Simply saying "it is designed to work like this, there is no fix", when an OLDER version actually had this feature....