|Do you have a touchscreen? If so, try turning off the touch screen feature for testing purposes. If it stops jumping around, you either have a corrupt driver or a bad screen. Try downloading the latest drivers from Lenovo..|
HP put out a tablet PC a couple of years ago and many of them had bad touch screens. They would do exactly what you are describing, mouse moving around on its own & left and right mouse clicking. We ended up sending hundreds of them back to HP to have the screen replaced.
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