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This could be due to a number of factors. Try these tips:

• If you're trying to access the Problems Library, you must have a class-level or higher membership. A $25 teacher account does not include access to this service. We'd be happy to upgrade your account for you, and apply any money previously paid for the lower-level account towards your new account. Class-level memberships start at $89.
• Have you just upgraded from a trial account, or changed your password for any other reason? Your browser may be remembering the wrong password. Please clear your cookies and try again; see the next point for details.
• Your browser may have stored an outdated or incorrect username or password. Please clear your cookies and try again. The simplest way to clear cookies is to restart your browser. If that doesn't work, we recommend this site to guide you through clearing your cookies: http://www.aboutcookies.org/
• You may have misremembered your username or password. Please check that you are using the correct combination, and that you are using correct capitalization, as passwords are case-sensitive. And then make sure that your cookies are clear; see the above point.
• If you've tried these ideas and still can't access the PoWs, please contact us using the information at the bottom of this page. Be prepared to tell us what page you were trying to access, and the text of any error message you received.

Please go to this page. (You can also find this link at the bottom of our login screen, below where you enter your username and password.) There's a form at the bottom of the page for you to enter your username or your email, and we'll send you a new password.

If you have questions, please contact us by email [any time]
or phone: 800-756-7823, option 2 [Mon - Fri, 8:00 am - 6 pm Eastern].

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