I just updated many of my drivers for my Compaq 2580 Presario Laptop. My speakers were working perfectly fine earlier today, now after the update, I can't hear anything. I have tried troubleshooting, and still nothing. Even when I try roll back on my sound device it doesn't work. Another wierd thing is that when I plug in headphones I can hear sound, but when I unplug them, I hear nothing. Please reply with any info or help at all, thanks.