it could be sharing an irq with your graphics card?

i've got a delta44 and was getting interferance when recording, solved it by turning off the level meters in sound forge, problem solved.

but also checked, in bios, the irq's being used by graphics card (in agp slot) and soundcard, they were both the same. changed the soundcard irq (to a lower number) and this seems to have cured it.

hope thats some help.