I think it's the VIA chipset on your board that doesn't like the SB live! What you should try first is lovering the hardware accelleration of the SB live in your conroll pannel. If this doesn't help... is you Graficcard PCI ? If it is the only way might be to replace it with an AGP card.
If you get crackling sound with an AGP grafic card I bet it's a geforce..in this case do the following
START - RUN - REGEDIT -HKEY_LOCAL_MACHINE\Software\NVIDIA
Corporation\Global\System
In the system folder if not already there(as on some PC's this tweak won't
do this part, if the following is already there then no need to continue as
the tweak is complete.) add a new Binary Value called Super7Compat
(you must write it with capital S and C) Then modify it with a value of 00
00 00 00
Thats it, reboot and no more geforce crackle. Again i say , if you still get
crackle it is because your SBLIVE card and the VIA chipset do not work
together very well.