There was a problem with the AIW volume controls and the Audigy (one)
when the Audigy first came out, and it took a long time to fix it
(almost a year), but it was fixed in late summer of 2002. If you use
drivers from fall of 2002 or later for BOTH the All-in-Wonder card and
the Audigy, the volume control works fine.
Also, if you don't really, really need the features of the Audigy 2, you
can buy an Audigy (one) Platinum directly from Creative on E-Bay for
$79.95 (note, that's "Buy It Now", you don't have to screw with an
"auction"). This is a FACTORY refurb, full "platinum" package (card,
live drive with firewire and IR, remote control, all accessories), in
the factory retail package box. In my mind, this has to be one of the
best deals going.