Can't hear sound on speakers - can hear sound on headphones

[megalodon]

Hello!
Can anyone help me with my problem because i have tried everything i read on thousands of forums.

I can't hear the music playing on my speakers, BUT i can hear the music playing in my headphones when i insert my headphones jack.

I have tried configuring aslamixer, tried configuring the sound devices but nothing seems to work. i have also installed a lot of music players such as asla player, audacity and so on. i also tried configuring the aslamixer from the terminal but it did's work as well.

I must add that i have linux ubuntu netbook remix 9.10 i386 installed and windows xp home edition sp3. In windows, i have no problem playing any sound. (I am new to linux <2 days> but very experimented with windows <17 years>).

Before you all jump and say that i should read the forum before posting, please trust me that i have read thousands of forums the last 2 days trying to solve this problem but i haven't found anyone having the same problem.
Thank you very much, and please excuse my english.

[raghaven.kumar]

did u recheck if all the volume controls in alsamixer have been set to full??