Have read a fair few threads on this issue and think I have identified & downloaded the correct original drivers from the Sony Vaio site:
http://support.vaio.sony.co.uk/downloads/preinstalled/preinstalled.asp?site=voe_en_GB_cons&category=1&se rie=PCV-RS&m=1646
When I unzip the drivers I see what I presume is my audio drive folder called AudioAdi_AD1981B, and then click on install.exe ...nothing happens..my CPU makes that whirring noise as if it's about to do something and then...nothing...zip...nada...and of course my sound is not restored...I did manage to install the chipset first then tried the audio install again but it didn't work. Have also tried downloading from Sony Vaio site twice just in case of dodgy download but again it didn't work...
I read somewhere that the sound card is only ever going to work with the drivers that are on my original Recovery Disk i.e. with the XP Home that the computer was bought with and if you ever want to upgrade then it's a good idea to save the Drivers folder somewhere safe before reformatting....so that you've always go them to hand. This of course I didn't do...am I thereby stuffed?? and need to reformat yet again with the original Recovery disc and stick with Home XP? I do still have the Recovery disc but am trying to avoid using it for obvious reasons.
Here's the Belarc report for good measure:
Operating System System Model
Windows XP Professional Service Pack 2 (build 2600) Sony Corporation PCV-RS604
System Serial Number: 28041650-5000215
Asset Tag: To Be Filled By O.E.M...............................
Enclosure Type: Desktop
Processor a Main Circuit Board b
3.40 gigahertz Intel Pentium 4
16 kilobyte primary memory cache
1024 kilobyte secondary memory cache Board: ASUSTek Computer Inc. P4SD-VL
Bus Clock: 200 megahertz
BIOS: American Megatrends Inc. 2003 09/14/2004
Drives Memory Modules c,d
450.10 Gigabytes Usable Hard Drive Capacity
404.67 Gigabytes Hard Drive Free Space
HL-DT-ST DVD-ROM GDR8162B [CD-ROM drive]
HL-DT-ST DVD-RW GWA-4082B [CD-ROM drive]
3.5" format removeable media [Floppy drive]
Multi Flash Reader USB Device [Hard drive] -- drive 5
Sony UMH-U HS-CF USB Device [Hard drive] -- drive 3
Sony UMH-U HS-MS USB Device [Hard drive] -- drive 2
Sony UMH-U HS-SM USB Device [Hard drive] -- drive 4
WD 2500JB External USB Device [Hard drive] (250.06 GB) -- drive 1
WDC WD2000BB-98FTA0 [Hard drive] (200.05 GB) -- drive 0, s/n WD-WMAER1158523, rev 15.05R15, SMART Status: Healthy 512 Megabytes Installed Memory
Slot 'DIMM0' has 256 MB (serial number SerNum0)
Slot 'DIMM1' is Empty
Slot 'DIMM2' has 256 MB
Slot 'DIMM3' is Empty
Local Drive Volumes
c: (NTFS on drive 0) 30.01 GB 18.84 GB free
d: (NTFS on drive 0) 170.04 GB 152.70 GB free
k: (NTFS on drive 1) 250.06 GB 233.13 GB free
Network Drives
None detected
Thanks for any expert light that can be thrown into my soundless world...
Shelleuk