If you have a SBLive make sure that its not sharing its IRQ with another PCI slot, the USB Controller, Highpoint Controller. Ignore the IRQ's in Windows, just look in the manual and set it so that its in a PCI slot that shares with nothing else.
Heres a rip from an earlier post to someone who was having similar probs:-
that sound stuttering IS the sign of IRQ sharing probs
PCI slot 3 works great for the SBlive in the KT7 raid in my two systems
PCI slot 2 should be great too
Have a look in your manual - it says which slots share their IRQ with the USB and the Highpoint controller. Will give u a clue as to why i chose these 2 PCI slots
I spoke to Creative about 12 months ago about this and when i told them the symptoms like urs they jumped on the IRQ bandwagon straight away.
If U are using Win98/ME then u will have a SB16 Emulation - this has to be on a low IRQ - IRQ5 be nice.
Best way i found to solve this was to take out all the cards from your puter except VGA and reboot.
Shutdown and then add just the SBLive and reboot and install the latest drivers.
Check that the IRQ's are something like "SBLive" - IRQ 10, "SB16 Emulation" - IRQ 5 be nice
Then u can pop ur other cards in one by one rebooting between each card and checking the IRQ's.
This way u will find out if any of your cards are trying to fight with the SBLive and SB16 and so change their PCI slot position before putting all the cards in and not knowing which one is causing the problem
If ur using Win2K then u wont have the SB16 problem so can just plug and play Heh, Win2k pnp rocks compared to Win9x.
I appreciate some of this might not apply to ur OS/problem but i reckon u will get the jist of it and it may be of some use in helping to solve ur problem.
Just a thought,
rockhard =)