The Multiple Pages Open page is displayed if you attempt to open more than one txGradebook window at the same time, excluding the Student Profile page which opens in a separate window.
If you believe that you got this message in error (e.g., if your browser crashed and the application still thinks there is an open window), then it may be necessary to clear cookies in your Internet Options settings.
Internet Explorer for Windows XP and Windows 2000:
In the browser, from the Tools menu, select Internet Options. The Internet Options dialog box appears.
From the Internet Options dialog box, click General.
Under Temporary Internet files, click Delete Cookies. A window will open asking you to confirm that you wish to delete all cookies. Click OK to continue or Cancel to cancel the action.
Click OK to close the Internet Options dialog box.
Mozilla Firefox
In the browser, from the Tools menu, select Options. The Options dialog box appears.
From the Options dialog box, click Privacy.
Click the Cookies tab.
Click Clear Cookies Now.
Click OK to close the Options dialog box.