sound problems with sony vaio VPCEB1EOE

after installing Ubuntu 10.04 on my vaio, AFTER installing all updates. i could not still get sound off it.
can someone please help me out.
thanks

Sound Problem

I own a Vaio and had the same problems for weeks. I went through many troubleshooting guides but none of them worked. So last week I downloaded and installed the Pre-Release of Ubuntu 10.10 Maverick. The sound works perfect now.

Heres a Link to download:
http://cdimage.ubuntu.com/daily-live/current/

thank you Brother

the sound is now working perfectly.
really appreciate it.