Ashik

Dear fellow vaio users, bought a vaio e series (i7, 8Gig) couple of weeks ago. Facing a strange problem and would highly appreciate your suggestions. I don't get sound on my speakers! If I turn it off and on (for several times) ... the problem gets fixed. But the same happens when I turn it on again (no sound, that is)!!! I tried everything (updating driver, reinstalling it, system restoring) .... even took help from sony vaio's online support. Nothing worked. Could somebody help plz??? What could be the cause of this strange problem? - Ashik.