Surprisingly, the fact that the screen is so close to the keyboard makes me see the keyboard and mess up totally my touch typing in Dvorak as my printed layout on the laptop is a standard US Qwerty. And this is not that I cannot really touch type, right now I am in the dark and I cannot see my hands (the keyboard is below the main plate of my desk).

This just see a little of the keyboard effect is surprising and may be one reason why some people have some difficulties starting with Dvorak if they do it on a Qwerty printed keyboard.