Sony Vaio TZ no soundcard

Hello,


I trying to get the sound card on my Sony Vaio TZ running, XP pro.
But whatever i try nothing works. It seems like an driver issue
as i see a question mark under Device Manager-> Other devices

As i have no sound card selected under Sounds And Audio Devices -> Audio
i am sure that is the one.

I have tried uninstalling whatever is there under Device Manager->Other devices
and reinstalling the Audio.exe from Sony.

But each time after reboot, it doesn't find anything.
Now, i have seen many people have the same problem with the TZ, i have read.
However no comment has helped me in solving the problem.

Your help will be appreciated!