Consider the following scenario:

• You are running a Windows Vista-based computer.
• A USB speaker is connected to the computer.
• You resume the computer from sleep or from hibernation.
• You use Windows Media Player to play music.

In this scenario, you cannot adjust the volume for the USB speaker. This is true even when you move the volume slider up or down or click the mute button in either of the following locations:

• In Windows Media Player
• In the Windows Vista sound control panel