Consider the following scenario. You connect a webcam to a Windows Vista-based computer. In the webcam’s Properties dialog box, you click Default on the Video Proc Amp tab or on the Camera Control tab. In this scenario, you may encounter the following problems:

• On the Video Proc Amp tab, you click to clear the Auto check box for the White Balance setting. Then, you set a value that you want. If you click Default, the default white balance value is regained. However, the Auto check box is not selected.
• On the Camera Control tab, the value of the Low Light Compensation check box does not change after you click Default. This occurs regardless of whether the check box was initially selected or not.

Consider the following scenario:

• You have a video camera that is connected to a Windows Vista-based computer through a USB connection.
  Note: This kind of camera may also be known as a “webcam.”
• You use the video camera together with a video-capture program to capture input from the camera.
• The computer is configured to use a power plan that puts the computer to sleep after a specified period of inactivity.
• You use the camera-preview feature to view input from the camera, and then Windows Vista enters a sleep state.

In this scenario, you may experience one of the following symptoms when you resume the computer from sleep:

• The camera-preview feature displays a blue screen that contains no video from the camera.
• The camera-preview feature displays a black screen.