msi pm8m3-v sound problem

Hi

My friend has following configuration

P4 - 2.4 Ghz
256 DDR RAM
western digital WD1600AVJS-63WNA0
MSI PM8M-VH MS7104 VER 3.0 motherboard.

He tried installing sound card drivers from MSI site but still
Windows XP showed a yellow exclamation mark over the sound card in device manager. His sound card is Realtek made.

Please help us to solve the problem.