Read the instructions from your camera manufacturer and follow them carefully to ensure proper installation of your camera. You must follow all guidelines specific to your camera or Yahoo! Messenger might not detect your camera.

Correct camera installation involves inserting the camera setup/installation CD, following all steps described in your installation booklet, and restarting your computer. Plugging in the camera's USB cord at the incorrect time during the camera software installation procedure can cause various problems.

To reinstall your webcam:

1. Uninstall any existing camera installations. Click "Start," "Settings," "Control Panel," and "Add/Remove Programs."
2. Unplug the camera's USB cord from the computer.
3. Reboot your computer.
4. Insert your camera's setup/installation CD into the CD-ROM drive. (If the setup program does not start automatically within a few seconds, type d:setup in the "Start & Run" menu at the bottom of your screen, replacing d: with your CD-ROM drive letter).
5. Follow the instructions described by the camera setup program, and plug in your camera only when prompted. This is usually done after rebooting your computer.