At random intervals, my com would randomly shut off, and then restart and when it shuts off, it would do so as if I were to press and hold it's power key. I'm running a laptop, Acer Aspire 4750 and this would be the first time I've encountered the issue. I realised a few things, for one, if the charger is plugged in then only will this happen, so as long as I don't run the screen while the charger is plugged, it doesn't crash. Also, when running intensive softwares such as games, it does not crash either. It is not a case of overheating as my laptop is usually really cool even when it restarts, i've cleaned out the fan to rule that out and I recently concluded that it might be a driver issue. I did a full system format, resetting the laptop to factory defaults and I found it working fine for the first month or so. Now, suddenly, it would have some crashes again. Any ideas would be helpful, thank you in advance.