No sound in King's Bounty english version

[alboy]

I bought Kings Bounty - The Legend today, the UK version & have updated to version 1.7.
I also have no sound & use the USB Logitech Z-10 Interactive 2.0 Speaker System & have never had any problems with sound or music before.
All my drivers are up to date.

I have tried to attach my DXDiag file but it is too big & will not accept it.

My PC Specs
Processor: Intel(R) Core(TM)2 Duo CPU E8400 @ 3.00GHz (2 CPUs)
Memory: 2048MB RAM
Graphics Card NVIDIA GeForce 8800 Ultra Memory 768 MB Driver ver. 182.50
Sound Device Z-10 USB Speaker System
DirectX 9.0C fully updated
Windows XP SP3
I also have over 300 GB of disk space available

Have you any help & advice please.