Make sure that your web browser's security is set to allow cookies*.

Internet Explorer (PC)

Go to Tools menu > Internet Options > Privacy tab and click the “Advanced” button. Check the “Override” box and the “Accept” button for First-party cookies and “Prompt” button for Third-party cookies. The “Always allow…” button should not be checked. Click OK. When done, click the Apply button.

Google Chrome

Go to Chrome menu > Preferences > Show advanced settings... > click the Privacy/Content Settings button. Under Cookies, choose "Block third-party cookies and site data".


On a Mac, go to Firefox menu > Preferences > Privacy. On a PC, go to Tools menu > Options > Privacy. Check the “Tell websites…" box under Tracking.


On a Mac, go to Safari menu > Preferences > Security tab and select “Only from sites you navigate to” for Accepting Cookies. On a PC, go to Safari menu > Preferences > Privacy tab and select "Block cookies from third-parties and advertisers".

(*Cookies are little files that web sites leave on your computer to remember settings, login credentials or any other information that your computer needs to make the user experience a bit better. Cookies are generally harmless, but they can be used to track your Internet usage, which is a privacy issue. In general, you probably don't want Internet sites tracking everything you are doing, so it's a good idea to block cookies where appropriate to maintain privacy.)

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