Hi. I have a weird problem with the laptop (Acer AS7738G). Here's the problem. In general the laptop works fine. BUT from time to time, when I lift it or move it it would shut down. After this it starts again by itself and when I do the same (lift it, move it around) nothing happens. Everything's fine. And it's like that 3-4 time a day. Even more. Sometimes I have to remove the battery and put it back in, because I can't turn it on after the sudden shut down. Any suggestions? The laptop was never dropped or handled roughly.