How can I find sound driver? Please Help!

You can download the video and device drivers from the NEC WEB site. Please click on this link and select your model computer/notebook and the Windows drivers you require :-. www.nec.com/global/support/downloads/index.html

try installing the latest audio driver.
You can download the audio and device drivers from the NEC WEB site.Please click on this link and select your model computer/notebook and theWindows drivers you require :-.www.nec.com/global/support/downloads/index.html

NEC LAVIE LL900/C LAPTOP SOUND VGA DRIVERS

You can download the audio and device drivers from the NEC WEB site.Please click on this link and
select your model computer/notebook and the Windowsdrivers you require :-. www.nec.com/global/support/downloads/index.html

You can download drivers from the NEC WEB site. Please clickon this link and select your model computer/notebook and the Windows driversyou require :-. www.nec.com/global/support/downloads/index.html

You can download drivers from the NEC WEB site. Please clickon this link and select your model computer/notebook and the Windows XP orVista drivers you require :-.www.nec.com/global/support/downloads/index.html

You can download drivers from the NEC WEB site. Please clickon this link and select your model computer/notebook and the Windows XP orVista drivers you require :-. www.nec.com/global/support/downloads/index.html

Go to the NEC WEB site to their support/download page to download the sound driver and any other device drivers for your model laptop. Make sure you download the Windows version of XP or Vista of the drivers you require.

http://www.nec-computers-ap.com/support/odds.aspx?CID=0

You need to give some more information!
What type is your Laptop? What operating system?

Also check Device Manager if your sound card is listed there...

Your solution is a easy one. Goto your favorite search engine. Type in NEC lavie ll350/b support. Find the web site that has your manufacture. When you are in the web site find the word support and then find your particular model. Once you click on it you will get a download page with drivers and manuals. Click on the drivers you need. Download them then run them on your computer.. this should fix your problem.