Its probably a hardware issue. I worked at IBM and they were very proud of that device that was invented there. They had a little glass display with the hard

Its probably a hardware issue. I worked at IBM and they were very proud of that device that was invented there. They had a little glass display with the hardware broken out and prototypes. It works with strain gauges[1]. Thats why you can control the speed of the pointer, not just the direction. When you get used to it, its quite effective. You can pull the rubber nub off and try it, that shouldn't help but it might. If its sticking in a position that isn't "Neutral" https://en.wikipedia.org/wiki/Pointing_stick https://en.wikipedia.org/wiki/Pointing_stick Oddly IBM made a mouse with that nub pointer thing. It worked so much better that any sort of wheel for pointing and scrolling, but I left it when I left IBM many many moons ago.