It's easy to sign in using a different Yahoo! ID. Here's how:

1. Select Messenger.
2. Select Sign Out.
3. Click Yes.
4. Enter your ID and password.
5. If more than one person is going to be using Messenger on this system, uncheck the Remember my ID & Password option. Messenger will then request a Yahoo! ID and password each time it's started.
6. Click Sign In.

Currently, it's possible to show only one Yahoo! account at a time on Yahoo! Messenger. However, you can switch back and forth between Yahoo! accounts. If you don't have a Yahoo! ID, click the "Get Yahoo! ID" button to create a free Yahoo! account.

Please know that Yahoo! takes your security seriously and takes reasonable steps to protect your information. To learn more about these security steps, please read the Security Information in the Yahoo! Privacy Policy. Also, please visit our Security Center for additional information on how to reduce your security risk when online.