to whoever reads this, I have just discovered that my surface pro2 also has the same issue and the only way I can get it to startup is to hold both buttons and do a hard reboot. I am going to try and put my pro into sleep mode instead of switching off completely and see if I can overcome this problem. I can easily guess that taking it to BestBuy/ Currys uk that it would be too costly. I might have to do a trade in as the self fix option is not suitable or might not work even afterwards. Sorry I could not come up with a better answer.