The drivers were released 12/20/01. They fixed some of the installation problems of the Beta4 drivers, and, while they seem to be working pretty well, there still could be issues with certain system configurations (none specifically). These drivers, being in beta release still, are not guaranteed to work. Full drivers are on their way. These cards will not support WDM for Cakewalk Sonar and GuitarStudio yet but do support MME and ASIO for virtually all other software applications.