For a long time now I've been experiencing issues with my old mouse. My old mouse either double-clicked on a single click, or didn't click at all. I assumed the mouse was failing and got a new one. The new mouse is working fine 99% of the time, but every now and then it will randomly double-click on a single click. The mouse can't be failing as it's brand new. I suspect that when it double-clicks that it is registering the downward click as a click and the upward release as a click as well. What I fail to understand is why this only occurs rarely. For the past week I've been attempting to notice when it does double-click and see that it doesn't matter what application I'm using and that I am not double-clicking by mistake.