When typing, the cursor will either jump into the middle of the sentence I'm typing or randomly start over. If I continue to type it will overwrite whatever text I had entered previously. Hitting esc before finishing the sentence will prevent it from overwriting, but doesn't do anything about the moved cursor. This happens regardless of what program I'm using. I only experience it when I am working on my laptop and not at my desk, where I have a full keyboard and docking station.