please help iam going mad

hi folks, ive just reinstalled a packard bell pc and now i can get the sound yellow icon in device manager media controller
ive searched everywhere and no joy, the pc just says packard bell on the side of it
download as many different audio drivers for packard bell that i can find no joy
here is the blelarc adviser info , thanks in advance for anyone who can help with this issue

Operating System System Model
Windows XP Professional Service Pack 3 (build 2600)
Install Language: English (United States)
System Locale: English (Caribbean) Packard Bell NEC 00000001
System Serial Number: a123456789
Chassis Serial Number: 50424E
Enclosure Type: Desktop
Processor a Main Circuit Board b
2.20 gigahertz AMD Athlon 64 X2 Dual Core
64 kilobyte primary memory cache
512 kilobyte secondary memory cache
64-bit ready
Multi-core (2 total)
Not hyper-threaded Board: NEC COMPUTERS INTERNATIONAL MS-7168 1.0
Bus Clock: 200 megahertz
BIOS: American Megatrends Inc. 080012 09/06/2005
Drives Memory Modules c,d
250.05 Gigabytes Usable Hard Drive Capacity
233.52 Gigabytes Hard Drive Free Space

LITE-ON DVD SOHD-16P9S [CD-ROM drive]
PHILIPS DVDR1628P1 [CD-ROM drive]
3.5" format removeable media [Floppy drive]

Generic USB CF Reader USB Device [Hard drive] -- drive 2
Generic USB MS Reader USB Device [Hard drive] -- drive 4
Generic USB SD Reader USB Device [Hard drive] -- drive 1
Generic USB SM Reader USB Device [Hard drive] -- drive 3
ST3250823A [Hard drive] (250.06 GB) -- drive 0, s/n 3ND21EDX, rev 3.03, SMART Status: Healthy 512 Megabytes Usable Installed Memory

Slot 'DIMM0' has 512 MB
Slot 'DIMM1' is Empty
Slot 'DIMM2' is Empty
Slot 'DIMM3' is Empty
Local Drive Volumes

c: (NTFS on drive 0) 250.05 GB 233.52 GB free

Network Drives
None detected
Users (mouse over user name for details) Printers
local user accounts last logon
JohnWhitehorse 03/12/2009 21:50:29 (admin)
local system accounts
Administrator never (admin)
ASPNET never
Guest never
HelpAssistant never

Marks a disabled account; Marks a locked account Microsoft XPS Document Writer on XPSPort:

Controllers Display
Standard floppy disk controller
Primary IDE Channel [Controller] (3x)
Secondary IDE Channel [Controller] (3x)
Standard Dual Channel PCI IDE Controller (3x) RADEON X550 [Display adapter]
RADEON X550 Secondary [Display adapter]
Nissei Sangyo 17AE-TA [Monitor] (17.1"vis, October 2001)
Bus Adapters Multimedia
Standard Enhanced PCI to USB Host Controller
Standard OpenHCD USB Host Controller (2x) None detected
Virus Protection [Back to Top] new Group Policies
ESET NOD32 Antivirus 3.0 Version 3.0
Virus Definitions Version Up To Date
Realtime File Scanning On
None discovered
Communications Other Devices

1394 Net Adapter
Realtek RTL8139/810x Family Fast Ethernet NIC
primary Auto IP Address: 192.168.1.23 / 24
Gateway: 192.168.1.254
Dhcp Server: 192.168.1.254
Physical Address: 00:13:D3:D8:76:36

Networking Dns Server: 192.168.1.254
VIA OHCI Compliant IEEE 1394 Host Controller
HID-compliant consumer control device (2x)
HID-compliant device (5x)
USB Human Interface Device (2x)
X10 Hid Device
HID Keyboard Device (2x)
HID-compliant mouse
USB Composite Device
USB Mass Storage Device
USB Root Hub (3x)