If another person is reporting that they can’t see you, here are a few things to try:

First, there might not be enough light in the room. If so, flip a switch to illuminate the room appropriately.

Also, your camera might not be functioning properly. Try your camera alone, separate from Yahoo! Messenger, using the manufacturer's software.

Or Yahoo! Messenger might have the wrong camera selected. To change your camera source:

Click Messenger and select "My Webcam."

Click Messenger again, and this time select Preferences.

Click Webcam.

Click Camera Source.

Click the pull-down menu and select the camera you want to use.

Click OK.

If you see a black screen when viewing a friend's webcam:

Check the status message at the bottom of your viewer window. If it says "Stopped," the person broadcasting has stopped broadcasting images. Ask the person to resume broadcasting and try viewing again.

If the person IS broadcasting and you still see a black screen in your viewer, ask them to check their camera by taking the steps outlined above.