I upgraded to sp2 on my xp pro machine and then the sound stopped working i saw how you help a lot of people out so here is the info you need hopefully someone can help me

850 megahertz AMD Athlon
Board: Asus K7M 1.04
BIOS: Phoenix Technologies LTD 1.04 03/27/00
Creative AudioPCI (ES1371,ES1373) (WDM)

I hope that's all the info you need, thanks in advance