You must be logged in to change your password. If you have forgotten your password, see Resetting your password section below.
Once you have logged in, click on the User Preferences icon at the top of the screen.
Then follow these steps to change your password:
Click on the Change Password tab
Enter your current password in the Current password field. Then create a new password that is 6 to 20 characters (only a-z, A-Z, and numbers 0-9 are accepted). Enter your new password in the New password and Confirm new password fields.
Click on the Change Password button to complete this process.
You may now use your new password the next time you log in.
If you have forgotten your password, you may reset your password and log in using a new password. To do this, click on Forgotten your password? on the log in page.
Next, enter your email address and click Submit.
An email with a password reset link will be sent to the email address that is registered against your account. Please allow 2-4 minutes for this email to arrive in your inbox. Open the email and click on the password reset link. Follow the instructions on screen to proceed.