Solve : Sound card not detected??

1.	Solve : Sound card not detected??
Answer» I got a new computer less than 2 months ago (Dell Inspiron 530s, running VISTA), and a few weeks later I experienced a problem with sound/playing music. When trying to play mp3 files on my player (MediaMonkey and J River) the songs were UNABLE to play. At the same time, I couldn't hear the audio on YouTube video, play streaming music VIA Last.fm, etc. The problem seemed to fix itself, so I considered it a FLUKE and left it at that. Now the problem is happening again, exactly as before. I ran a DirectX diagnostic and under Sound it says: "No sound card was found. If one is expected, you should install a sound driver provided by the hardware manufacturer." Does anyone know what's going on or what I can do to fix it? I tried browsing the Dell forums but it crashes my computer every time.Does device manager REGISTER your onboard sound? Any ! or ? in device manager?

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