No sound on my laptop

Why is it I cant hear sound on my built in speakers but I can here it wheni plug in headphones?

Can any 1 pls help me no audio output device is installed on my laptop thats what it is sayin when I try turning up d volume ...

Hi my boyfriend has a laptop and had sound. But when his teacher dumped it and cleaned it out or whatever. Something happened...

What is an eee laptop? the macbook competition?

my sigmatel audio was removed by my son an now I have no sound and cant get anything to give me sound please help

Can I connect sky hd to my laptop with hdmi??.

The actual sound is working, it's just that when I push the sound up and down buttons they have stopped making that clicky no...

I have an advent netbook and recently when I play music and videos on it the sound is really mucked up. Its hard to describe ...

my hp laptop just started making this soft,quiet hissing noise. it's been like this for a few hours off and on now. and i've ...

my laptop is an "acer travelmate 4280" I have no sound on it what so ever. all the volume is turned up and I can't see any p...