I have searched for this but struggled to find anything regarding the Surface Book exclusively. My touch screen becomes unresponsive at (not sure if random) times, does not register any touches at all but power and volume buttons are still functional. I can say that it happens sometimes after going to sleep and come back multiple times in the day but not really sure if that's the problem that is causing it. When I restart it works fine but it's frustrating to realise when I detach the clipboard that touch is not working so having to reattach to use trackpad to restart it. Is this a known issue? Does anyone else suffer from such problem?