Changing Volume Balance in Windows XP:
1. Double click on the volume icon in the system tray to open "Master Volume" window
2. Use slidebar to easily change volume balance, or do it for various devices individually
Changing Volume Balance in Windows Vista:
1. Right click on the volume icon in the system tray
2. In the menu that pops up, click "Playback Devices"
3. Double click on your Speakers in the "Playback" tab of the "Sound" window
4. Click on the "Levels" tab in "Speaker Properties"
5. Click on the "Balance" button under "Speakers"
6. Use slidebars to individually control left and right channels