hp laptop - sound only from headphones

[krushi]

Hi,
I just bought this hp pavilion dv6-2162nr laptop, and suddenly the speakers stopped working.

I removed the driver and reinstall it, I tried plugging in and out the headphones, I tried different solutions from different forums (including from this forum http://www.sevenforums.com/sound-au...peaker-but-there-sound-through-headphone.html), and couldn't get it fixed.

I have win 7 home premium 64-bit.

I don't think it is a hardware problem, because when i play with the headphones volume control (from the taskbar), suddenly i hear sound from the speakers (when i stop playing with it the sound stops).

I also tried hp support, and they couldn't help me.
please have some answers for me

thanks

 

[krushi]

Guys, you are my last hope before sending it to a lab (again...)
someone have a clue how can i fix this problem?!

thanks