My acer computer had been working fine for about 2 months. But then yesterday,the computer suddenly shut down...no warning or anything. I haven't been able to turn on the computer ever since. Although when I press the space bar sometimes a light indicator turns blue(the screen is still dark during this time)...though for a short period of time. When the blue light turns off I hear a sort of clicking sound. I left the computer without charging for a half an hour and then when I flipped the monitor on I saw the acer logo for ten seconds after which it turned off again. What do I do?