Check to see if you have an ATI All-in-Wonder AGP card. If so, this card has audio drivers for its A/V features which prevents our output driver from showing up in Cakewalk or Sonar. You will need to disable the ATI audio drivers in the Device Manager (Right-click on My Computer, go to Properties, Device Manager, Sound Video and Game Controllers, double-click on the ATI audio driver, and select Disable in this Hardware Profile and hit OK.)