'No audio device" - Dell Dimension 8300

I recently had to update the BIOS and then had WinXP reinstalled the Intel(R) PRO/100 VE Network Connection in order to reestablish my Ethernet connection with my network. After doing this, I did not get sound from my speakers. I went to the Volume Tab of Sounds & Audio Devices it tells me "no audio device". Yet, when I click the Audio Tab and Hardware Tab, all my settings, devices and drivers are working properly.

I went into the BIOS to see if the Audio was actually On. It was not. So, I turned it On, rebooted and WinXP detected New Hardware. I ignored the WinXP Hardware Install and inserted the Dell Resource CD: Drivers & Utilities and it seemed to install the driver software. When rebooting I did not get the WinXP Found New Hardware, but there is still no sound and when I got to the Volume Tab of Sounds & Audio Devices it tells me "no audio device". Yet, when I click the Audio Tab and Hardware Tab, all my settings, devices and drivers are working properly.

I attached my Plantronics USB Headphones because it did not require an On-Board sound card and I hoped that at least the headphones might work& they do not work, so I detached them.

I emailed Dell Support yesterday and hoped they would answer quickly. Unfortunately, no return email yet This is truly an inconvenience because I have a voice chat session scheduled for tonight. I would a grateful for help.
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Here are the details from SiSoftware Sandra Lite, which detected my mainbord and other information:

System
Manufacturer : Dell Computer Corporation
Model : Dimension 8300

Mainboard
Manufacturer : Dell Computer Corp.
Multi-Processor (MP) Support : 1 Processor(s)
MPS Version : 1.40
Model : 0M2035

On-board Devices
Intel Pro 100 VE Network Connection : Ethernet Adapter (Enabled)
AC'97 Audio Controller : Sound Adapter (Enabled)

System Memory Controller
Location : Mainboard
Error Correction Capability : ECC
Number of Memory Slots : 4
Maximum Installable Memory : 4GB
Bank 1 - CHANNEL A DIMM 0 : DIMM Synchronous SDRAM 512MB/64 @ 400Mt/s
Bank 2 - CHANNEL B DIMM 0 : DIMM Synchronous SDRAM 512MB/64 @ 400Mt/s
Bank 3 - CHANNEL A DIMM 1 : Empty
Bank 4 - CHANNEL B DIMM 1 : Empty

Chipset 1
Model : Dell Computer Corp 82875P,E7210 Memory Controller Hub
Revision : A3
Bus : Intel AGTL+
Front Side Bus Speed : 4x 200MHz (800MHz data rate)
Maximum FSB Speed : 4x 200MHz (800MHz data rate)
Width : 64-bit
HTT - Hyper-Threading Technology : Yes
I/O Queue Depth : 12 request(s)
Maximum Bus Bandwidth : 6400MB/s (estimated)

Chipset 1 Hub Interface
Type : Hub-Interface
Version : 1.50
Number of Ports : 3
Width : 8-bit
Full Duplex : Yes
Multiplier : 2/1x

Logical/Chipset 1 Memory Banks
Bank 0 : 512MB DDR-SDRAM 3.0-3-3-8 (tCL-tRCD-tRP-tRAS) CR1
Bank 1 : 512MB DDR-SDRAM 3.0-3-3-8 (tCL-tRCD-tRP-tRAS) CR1
Supported Memory Types : ECC DDR-SDRAM
Channels : 2
Memory Bus Speed : 2x 200MHz (400MHz data rate)
Maximum Memory Speed : 2x 200MHz (400MHz data rate)
Multiplier : 1/1x
Width : 64-bit
Memory Controller in Processor : No
Performance Acceleration Technology : Yes
Refresh Rate : 7.80µs
Power Save Mode : No
Fixed Hole Present : No
Maximum Memory Bus Bandwidth : 6400MB/s (estimated)

APIC 1
Version : 2.00
Multiplier : 1/2x
Maximum Interrupts : 24
IRQ Handler Engaged : Yes
Enhanced Support : Yes

Memory Module 1
Manufacturer : Nanya
Model : NT512D64S8HB1G-5T
Serial Number : 11070807
Type : 512MB DDR-SDRAM
Technology : 16x(32Mx8)
Speed : PC3200U DDR-200
Standard Timings : 3.0-3-3-8 (tCL-tRCD-tRP-tRAS)
Date of Manufacture : Wednesday, August 06, 2003
Memory DC Line : 2.5V
Set Timing @ 200MHz : 3.0-3-3-8 (tCL-tRCD-tRP-tRAS)
Set Timing @ 167MHz : 2.5-3-3-7 (tCL-tRCD-tRP-tRAS)
Set Timing @ 133MHz : 2.0-2-2-5 (tCL-tRCD-tRP-tRAS)

Memory Module 2
Manufacturer : Nanya
Model : NT512D64S8HB1G-5T
Type : 512MB DDR-SDRAM
Technology : 16x(32Mx8)
Speed : PC3200U DDR-200
Standard Timings : 3.0-3-3-8 (tCL-tRCD-tRP-tRAS)
Date of Manufacture : Wednesday, August 06, 2003
Memory DC Line : 2.5V
Set Timing @ 200MHz : 3.0-3-3-8 (tCL-tRCD-tRP-tRAS)
Set Timing @ 167MHz : 2.5-3-3-7 (tCL-tRCD-tRP-tRAS)
Set Timing @ 133MHz : 2.0-2-2-5 (tCL-tRCD-tRP-tRAS)

Cooling Device(s)
Fan : OK

AGP Bus(es) on Hub 1
Version : 3.00
Speed : 8x
Multiplier : 1/2x
Fast-Writes Enabled : Yes
Isochronous Mode Enabled : No
Addressing Enabled : 32-bit
Aperture Size : 128MB

PCI Bus(es) on Hub 1
Version : 2.20
Number of Bridges : 2
PCI Bus 0 : PCI (1/1x PCIClk)
PCI Bus 2 : PCI (1/1x PCIClk)

LPC Hub Controller 1
Model : Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge
Revision : A3
ACPI Power Management Enabled : Yes
Delayed Transaction Enabled : Yes

LPC Hub Controller 2
Model : Dell Computer Corp 82801EB/ER (ICH5/ICH5R) SMBus Controller
Revision : A3

LPC Legacy Controller 1
Type : SMSC LPC v1
Version : 14.04
Number of Enabled Devices : 4

Sound Adapter 1
Model : Dell Computer Corp SoundMAX Integrated Digital Audio
Revision : A3
Type : AC '97
Version : 2.01

Sound Adapter 2
Model : Creative Labs SBLive! (OEM'd For Dell??)
Revision : A1
Type : AC '97

USB Controller 1
Model : Dell Computer Corp 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1
Revision : A3
Version : 1.10
Interface : UHCI
Channels : 2
Speed : 48MHz
Supported Speed(s) : Low (1.5Mbps) Full (12Mbps)
Legacy Emulation Enabled : No

USB Controller 2
Model : Dell Computer Corp 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2
Revision : A3
Version : 1.10
Interface : UHCI
Channels : 2
Speed : 48MHz
Supported Speed(s) : Low (1.5Mbps) Full (12Mbps)
Legacy Emulation Enabled : No

USB Controller 3
Model : Dell Computer Corp 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3
Revision : A3
Version : 1.10
Interface : UHCI
Channels : 2
Speed : 48MHz
Supported Speed(s) : Low (1.5Mbps) Full (12Mbps)
Legacy Emulation Enabled : No

USB Controller 4
Model : Dell Computer Corp 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4
Revision : A3
Version : 1.10
Interface : UHCI
Channels : 2
Speed : 48MHz
Supported Speed(s) : Low (1.5Mbps) Full (12Mbps)
Legacy Emulation Enabled : No

USB Controller 5
Model : Dell Computer Corp 82801EB/ER (ICH5/ICH5R) USB 2.0 EHCI Controller
Revision : A3
Version : 2.00
Specification : 1.00
Interface : EHCI
Channels : 8
Companion Controllers : 4
Supported Speed(s) : Low (1.5Mbps) Full (12Mbps) High (480Mbps)
Addressing Support : 64-bit
Legacy Emulation Enabled : No

System SMBus Controller 1
Model : Intel 801xx/63xx SMBus
Version : 0.02
Specification : 2.00
Advanced TCO Mode Enabled : No
Slave Device Enabled : Yes
PEC Support : No
Speed : 100kHz

Expansion Slot(s)
PCI1 (1h) : PCI 32-bit +5V +3.3V PME Full-Length Available (Intel Corporation 82875P PCI to AGP Bridge)
PCI2 (2h) : PCI 32-bit +5V +3.3V PME Full-Length Available
PCI3 (3h) : PCI 32-bit +5V +3.3V PME Full-Length Available
PCI4 (4h) : PCI 32-bit +5V +3.3V PME Full-Length Available
AGP1 : AGP-8x 32-bit +3.3V PME Full-Length Used

Port Connector(s)
PARALLEL : Parallel Port PS/2 / DB-25 pin female
SERIAL1 : Serial Port 16550A / DB-9 pin male
KYBD : Keyboard / PS/2
MOUSE : Mouse / PS/2
USB1 : USB / USB
USB2 : USB / USB
USB3 : USB / USB
USB4 : USB / USB
USB5 : USB / USB
USB6 : USB / USB
USB7 : USB / USB
USB8 : USB / USB
ENET : Network / RJ-45
MIC : Audio / Mini-jack
LINE-OUT : Audio / Mini-jack
LINE-OUT : Audio / Mini-jack
LINE-OUT : Audio / Mini-jack
LINE-IN : Audio / Mini-jack
HP-OUT : Audio / Mini-jack

Performance Tips
Notice 224 : SMBIOS/DMI information may be inaccurate.
Tip 2511 : Some memory slots are free so the memory can be easily upgraded.
Tip 2546 : Large memory modules should be ECC/Parity.
Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip.
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