• Are you using the correct PIN?
Your PIN should be the last four digits of your telephone number. (Your PIN should also work to access Your Account.) If that number isn't working for you, you can request your PIN.
• Are you using a current web browser?
Some research tools require a recent web browser version (Internet
Explorer 7+ or Firefox
• Are your cookies enabled? (What are 'cookies'?)
Many research tools require that your web browser (Firefox, Internet Explorer, etc.) be set to accept cookies to work well. For information on setting your browser to accept cookies visit Google's "How to Enable Cookies" page.