Problem solved.
After running a query in Google I found a thread about my problem in
Software Tips and Tricks.
[URL="http://www.softwaretipsandtricks.com/forum/windows-xp/12004-no-theme-sounds-xp-home.html"]http://www.softwaretipsandtricks.com/forum/windows-xp/12004-no-theme-sounds-xp-home.html[/URL]
Basically my loading the new hardware changed the second of the registry
keys mentioned.
Setting back to default cured the problem.
George Humphries
"GEORGE HUMPHRIES" wrote in message
>I am running Windows XP sp3
>
> I have just spent a couple of days installing a wireless broadband router
> after my original hub died.
>
> After getting everything working (or so I thought) I noticed that the
> normal notification sounds weren't sounding off.
>
> I've tried changing my theme back to the windows default, the icons and
> wall paper etc. all change over but still no sound even for the default
> windows settings.
>
> I've played the sounds individually by double clicking on them and they
> sound off ok.
>
> I've run direct x checker and that's ok
>
> Skype (including the start-up whoosh noise) works ok
>
> I can play radio stations over explorer.
>
> Any thoughts please on where I can start looking?
>
> George Humphries
>
>> Stay informed about: Missing theme sounds after new hardware install