Auzentech has released new drivers for the Prelude 7.1 and Forte cards.
http://www.auzentech.com/site/company/announce.php?switch=45#45
Can't say I noticed a huge difference, but certainly no problems with these drivers.
http://www.auzentech.com/site/company/announce.php?switch=45#45
Changes in this Driver
Corrects localization error in Korean DDL/DTS Connect screen*
Adds MIC Boost control feature to the Creative Mixer. User can turn MIC Boost on or off. Default setting is "on."
Can't say I noticed a huge difference, but certainly no problems with these drivers.