I'm following what you are saying, however it will not do it on my phone, even using your technique to show it. I never have problems with the screens scrolling by themselves, unresponsive keyboard inputs or anything else. Just one of those things, I'm not sure I would straight out call it a defect in the system or screen when so far you are the only one I've seen with this issue. Could just be a bad phone is all I'm saying.