Hi

My T440P Thinkpad has a Trackpoint, which is a type of mouse that is controlled by 1 finger.  The Trackpoint is between the G and H keys.  

Anyway, on 9Front, the Trackpoint works good...very smooth...just right speed.

I also plug into the USB a mouse.  So, both Trackpoint and USB-mouse work at same time.

But, with the USB-mouse, the cursor is very bad.  The cursor moves at same speed, but it is choppy.  By "choppy", I mean it is not smooth.  It is like it has a very low refresh rate.

Any idea why?

Thanks!