What were u using for sound before the audigy? If it was onboard did you disable it in the bios? If it was another card did you remove the old drivers?
You said you moved the card around. Do you mean to different pci slots? Dont use the pci slot next to the agp card. You might check the MB manual and see if it lists the irqs and other settings that each pci slot uses.(mine did) Select a slot that doesnt use any of the same settings as the agp slot.