Dell Latitude E7440 :: Usage Of Pointing Stick Leads To Cursor Drifting

I am experiencing an issue from the usage of the pointing stick (I have gotten accustomed to it) where the cursor would drift slightly about 3-4cm before it stops when I let go of the pointing stick. It occurs maybe about 5-10 times on a working day. The funny part is if I continue to move the pointing stick and letting go just right before it finished drifting, it would continue to drift perpetually until I allow it to finish drifting i.e usually drifts 3-4cm away from the pointed area. It causes me inconvenience whenever im dragging an icon or a browser around and it can get pretty annoying.