When I click on my mouse it double clicks. I even did tests and click really fast then move away, and it will double click and perform two actions. Does this sound familiar, and can be solved easily?
Keep in mind if your mouse is not a Logitech like mine, then the settings for your mouse may say something different. If the problem persists you might have a defect mouse.
This happened to one of my old mice. It was a cheap Dell mouse of no real significance but after a lot of use the right click would activate the sensor twice. If it does it on a different computer just chuck it and replace it.