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Misterious "No sound device installed"
Hi, Please help me to solve a big mystery that even the laptop technician failed to. I have Compaq Presario 3614 AU with WIn 7 Ultimate. As it show in low right corner "No Audio Output Device is installed" Many times I brought it for reparation and the technician fixed it claiming that the cable connection melted due to high temperature. He also put a new sound chip. But after reparation it can't stand more than 2 or 3 days. Each time I have to use a USB sound card. In fact, I'm little sceptic regarding the technician's explanation because right now it failed while the laptop is not hot at all. (i'm also using a cooling pad). Of course I can't install any driver since there's no sound device installed. I got the same mysterious issue when I was using XP previously. Please any help/suggestion? Thanks AMD Turion 64 x2 2Gb HDD 120Gb Win 7 Audio device Connexant.