If i'm reading this right you're trying to record at 24/96?? I wouldn't go that high over the USB bus, others have reported probs w/ this. Try 24/48. And make sure that in Wavelab under prefs, you have all the right settings for the UA5 drivers (ASIO, sample rate/bit), and that the UA5 itself is set to proper bit/sample rate. And make sure that under start>setiings>control panel>sound that you have UA5 as the prefered device.