My computer is a dell inspiron 570, running windows 7.
I've had it for a couple years now, and this is the first time I've experienced this problem. I went to bed with my computer on and it automatically when to standby, but when I woke and tried to use my computer, there was no sound coming from the speakers.
All of my drivers/settings are intact. The sound is not muted, and the speakers themselves work when I jack them into my Mp3 player. I have also tried using headphones in the speaker jack, but there was still no sound.
I've attempted a system restore, downloading new drivers, etc but the problem persists.
Help?

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