Hi all, My mac mouse is not smooth, especially at low speed. It's like jerky and very annoying. I've tried playing around with the mouse settings but doesn't seem to fix this jerkiness. OS I'm using is 10.5.8. I tried using the mac mouse on my windows laptop & it works fine. I also face this jerkiness problem when I plug in other brand mouse on my mac book. Have tried both the USB ports on my mac book. Anyone with similar issue? Appreciate if someone can provide me with a solution. Thanks.