asslam o aliakum ...

i have problem in installing sound driver in my pc.....
these are the specification of my pc....

operating system

Windows XP Professional Service Pack 2 (build 2600)
Install Language: English (United States)
System Locale: English (United States)

system model :

Gateway MIDWAY 4000824
System Serial Number: 0032451882
Chassis Serial Number: 0032451882
Enclosure Type: Desktop

i downloaded and tried to install driver but it doesn't completes ..shows a message { the driver not found reboot and run the setup again }

plz help me out.......