UA-1X: Device Driver
The UA-1X uses the core audio drivers in WIN XP. There is no external driver. After plugging in the UA-1X, it should be recognized by Windows as a new USB device and automatically installed.
To verify that it's your default audio device, follow these steps:
1. Go to the Control Panel on your Windows OS.
2. Double-click on the "Sounds & Audio Devices".
3. Click on the AUDIO tab.
4. Look under DEFAULT PLAYBACK and the DEFAULT RECORDING fields.