I have just bought a 64GB Surface 2 a few days back. I tried to shut it down about 24 hours ago (by holding down the off-on button on the top edge). Since then it has been shutting down ever since. The only two screens I get is the blank power saver screen and the one saying "Shutting Down" along with the circle of dots signifying wait. The only strange thing before I tried toi shut down the machine was that I tried to install Dominoes from the Store and it never installed so I tried to cancel the install but it just kept saying installing. I don't have a separate keyboard and nothing works except the on-off key which brings up the shutting down screen. I've tried holding down the on-off button for several seconds and it does nothing. Any ideas please?