Macbook Pro mid 2014. When I am writing text, in Open Office, Gmail or whatever, my text suddenly, and for reasons I cannot understand jumps back to an earlier position, probably one that I had gone to with the marker. I've seen that, if I move the arrow off the page it helps, but this is annoying. I bought the computer virtually new, but not completely, and the problem has been there from the start. Could it be a physical problem with the computer that can maybe be solved in service? Has anyone had similar problems? The strange thing is that in writing this it hasn't happened at all and that seems to me to be really weird... like feeling better just before you go to the doctor... Can it be that the problem is in Open Office or Gmail??