I've noticed that sometimes it's horizontal (on my desk) and as I pick it up it to write a message, it's tilted (the screen appears horizontal). I usually tilt it a bit and then it comes back to vertical. (Maybe it's just slow and I am impatient) Has anyone else experienced this? Even when I type sometimes if I tilt it, it takes a second or two for the screen to "catch up" to my motion. Is this common? I know it's not a big deal but it's kind of annoying. Thoughts?