I cannot play sounds through my speakers. My speakers are on and there is power to them. In the control panel under sounds and audio devices, it says "no audio device" under the volume tab. Under the audio tab, it will not allow you to select anything under default device for either sound or music playback. My kids have a Logitech camera, and it is the default under sound recording. Under the hardware tab, Unimodem Half-Duplex Audio Device is set to use this device (enable) under device usage. It also says that Audio Codecs, Legacy Audio Drivers, and media control devices are working properly. Only the camera comes up under advanced audio controls. Under device manager, there is no speaker set icon. It has a (-) instead of a (+) in the box in front of it, and then after it, a yellow (?), then "other devices" and below that, another yellow (?) and then "Multimedia Audio Controller". It does have a "sound, video, and game controller" option in the device manager, however. Under "Properties" in that selection, though, there is nothing to select but OK and cancel. All of my device manager property boxes are like that. There used to be a volume control icon on the bottom right on my screen, but it's gone now. I went in under Unimodem Half-Duplex Audio Device "properties", and tried to update the drivers. The wizard said that there is no better match than the one I already have. Pleas help me, someone! I just don't know what else to do!

Here is my computer profile from Belarc:
Computer system information
Operating System System Model
Windows XP Professional Service Pack 2 (build 2600) Dell Computer Corporation Dimension 3000
System Service Tag: 591NV71 (support for this PC)
Chassis Serial Number: 591NV71
Enclosure Type: Mini-Tower
Processor a Main Circuit Board b
2.40 gigahertz Intel Celeron
16 kilobyte primary memory cache
256 kilobyte secondary memory cache Board: Dell Computer Corp. 0TC667
Serial Number: ..CN4811155K07K0.
Bus Clock: 533 megahertz
BIOS: Dell Computer Corporation A02 11/08/2004
Drives Memory Modules c,d
40.05 Gigabytes Usable Hard Drive Capacity
24.70 Gigabytes Hard Drive Free Space
TSSTcorp CDRW/DVD TSH492B [CD-ROM drive]
SAMSUNG SV4002H [Hard drive] (40.06 GB) -- drive 0, s/n 0413J1FT153588, rev QP100-07, SMART Status: Healthy
510 Megabytes Installed Memory
Slot 'DIMM_1' has 512 MB
Slot 'DIMM_2' is Empty
Local Drive Volumes
c: (NTFS on drive 0) 40.05 GB 24.70 GB free
Network Drives
None detected
Users (mouse over user name for details) Printers
local user accounts last logon
Administrator
7/31/2007 1:15:11 PM (admin)
local system accounts
Guest
never
HelpAssistant
never
SUPPORT_388945a0 never
Marks a disabled account; Marks a locked account Dell Photo AIO Printer 922 on USB001
Controllers Display
Intel(R) 82801EB Ultra ATA Storage Controllers
Primary IDE Channel [Controller]
Secondary IDE Channel [Controller] Intel(R) 82865G Graphics Controller [Display adapter]
DELL E773c [Monitor] (15.7"vis, s/n 6418052S32RC, February 2005)
Bus Adapters Multimedia
Intel(R) 82801EB USB Universal Host Controller - 24D2
Intel(R) 82801EB USB Universal Host Controller - 24D4
Intel(R) 82801EB USB Universal Host Controller - 24DE
Intel(R) 82801EB USB2 Enhanced Host Controller - 24DD Logitech Microphone (Messenger)
Unimodem Half-Duplex Audio Device
Communications Other Devices
Intel(R) 537EP V9x DF PCI Modem
Intel(R) PRO/100 VE Network Connection
primary Auto IP Address: 192.168.1.47 / 24
Gateway: 192.168.1.1
Dhcp Server: 192.168.1.1
Physical Address: 00:13:20:53:3B:83
Intel(R) PRO/100 VE Network Connection - PCTools Driver
Networking Dns Server: 192.168.1.1
HID-compliant device
USB Human Interface Device (2x)
Dell Photo AIO Printer 922
Logitech QuickCam Messenger #2
Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
HID-compliant mouse
Logitech USB Camera (Messenger)
USB Composite Device
USB Printing Support
USB Root Hub (4x)
Virus Protection [Back to Top]
AVG 7.5.476 Version 7.5.476
Realtime File Scanning On
Missing Microsoft Security Hotfixes [Back to Top]
These required security hotfixes (using the 07/10/2007 Microsoft Security Bulletin Summary) were not found installed. Note: CIS benchmarks require that Critical and Important severity security hotfixes must be installed.
KB929969 - Critical (details...)
KB933566 - Critical (details...)
Installed Microsoft Hotfixes [Back to Top]
Internet Explorer 6
SP1
KB918439-IE6SP1-20060530.145346 on 6/21/2007 (details...)
KB918899-IE6SP1-20060725.123917 on 6/21/2007 (details...)
KB925486-IE6SP1-20060918.120000 on 6/21/2007 (details...)
MSXML4SP2
KB927978
on 7/30/2007 (details...)
Outlook Express 6
SP1
KB911567-OE6SP1-20060316.165634 on 6/21/2007 (details...)
WGA
SP0
KB892130 on 7/31/2007 (details...)
Windows Media Format 11 SDK
KB929399
(details...)
SP0
KB929399 on 7/31/2007 (details...)
Windows Media Player 6.4
KB925398_WMP64 (details...)
SP0
KB925398_WMP64 on 7/30/2007 (details...)
Windows Media Player 8
KB917734_WMP8 (details...)
SP0
KB917734_WMP8 on 6/21/2007 (details...)
Windows Media Player 9
KB917734_WMP9 (details...)
SP0
KB911565 on 7/28/2007 (details...)
KB917734_WMP9 on 7/30/2007 (details...)
Windows Media Player
SP0
KB911564 on 6/21/2007 (details...)
Windows XP
KB923689
(details...)
SP0
KB904706 on 6/21/2007 (details...)
KB923689 on 7/30/2007 (details...)
SP10
MSCOMPPACKV1 on 7/31/2007 (Microsoft Compression Client Pack 1.0 for Windows XP)
SP2
KB811113[SP] on 7/28/2007 (details...)
SP3
KB873339 on 7/28/2007 (details...)
KB885835 on 7/28/2007 (details...)
KB885836 on 7/28/2007 (details...)
KB885884
on 7/30/2007 (details...)
KB886185 on 7/30/2007 (details...)
KB887472 on 7/30/2007 (details...)
KB888302 on 7/28/2007 (details...)
KB890046 on 7/28/2007 (details...)
KB890859 on 7/28/2007 (details...)
KB891781 on 7/28/2007 (details...)
KB893756 on 7/28/2007 (details...)
KB893803V2 on 2/6/2007 (details...)
KB896358 on 7/28/2007 (details...)
KB896423 on 7/28/2007 (details...)
KB896424 on 7/28/2007 (details...)
KB896428 on 7/28/2007 (details...)
KB898461 on 3/12/2007 (details...)
KB899587 on 7/28/2007 (details...)
KB899589 on 7/28/2007 (details...)
KB899591 on 7/28/2007 (details...)
KB900485 on 7/30/2007 (details...)
KB900725 on 7/28/2007 (details...)
KB901017 on 7/28/2007 (details...)
KB901214 on 7/28/2007 (details...)