I have a Lenovo laptop with windows 8. For quite some time I have had a problem with my curser jumping around while I am typing. I can type a couple of sentences and in the middle of the next sentence the curser has jumped to another location In my paper and before I realize it I have typed part of my current sentence there so I have to go back and erase it then click where I left off to finish my current sentence. It does this several times in the course of typing even a paragraph. I am in college classes online so I type papers to submit, as well as I have a typing class where I take timed tests, so this isn't going to be feasible. Im at my witts end. So please help.