After a discussion with an engineer, I'm posting this follow-up with more info as to why the Creative Labs Audigy 2 ZS card is not supported by RiffWorks:
RiffWorks is fixed at 44.1 kHz, but this card does not support this in its ASIO driver.
See this review by Sound on Sound where they mention the problem with this Creative card:
"If, like a sizeable proportion of musicians, you want to work at 24-bit/44.1kHz or even 16-bit/44.1kHz, you don't get ASIO support, and existing 44.1kHz files will either generate error messages or play back at the wrong pitch and tempo, while multitrack 44.1kHz demo songs will emerge out of sync." Review online:
http://www.soundonsound.com/sos/oct03/articles/audigy.htmRiffWorks works great with the StealthPlug and TonePort GX devices which cost less than $100 and give you killer amp modeling as well. RiffWorks Recommended Hardware list:
http://www.sonomawireworks.com/guide/index.php/Recommended_HardwareCheers,
Michelle