To use the AT&T Yahoo! Sidebar and to customize the AT&T Yahoo! Toolbar and AT&T Yahoo! Pop-Up Blocker, you must sign in to AT&T Yahoo!. When you sign in, these additional features are available:
Launch Internet Explorer.
Click the Sign in button on the AT&T Yahoo! Toolbar.
The AT&T Yahoo! Toolbar sign-in form appears.

Enter your Member ID and password, check the box if you want your computer to remember your sign-in information, and then click the Sign In button.
You are signed in to AT&T Yahoo!Your AT&T Yahoo! Home Page appears, and the AT&T Yahoo! Toolbar is updated with any customizations you have configured. If the AT&T Yahoo! Sidebar is visible, it displays your selected content.
Tip: If a web page you visit changes your home page, select Internet Options on the Tools menu, and click the Use Default button in the Home page section; then click the OK button.
After you sign in, you can use and customize your AT&T Yahoo! Toolbar, AT&T Yahoo! Sidebar, and AT&T Yahoo! Pop-Up Blocker.