D
Deleted User
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You won't believe this, but the problem was my power supply. For some reason it was way under-powering my laptop. Know how I fixed it? Unplugging it and plugging it into a different socket. Problem completely solved after that. Only tricky thing now is, if this happens again, I may need to replace my power supply. Turns out this has happened to other Alienware users in the past, that's how I found out about it by researching old forum posts on NBR. So relieved that it's solved, though. That was seriously looking dire.