One common issue is related to your browser settings. As with most secured interactive web sites, it is necessary to set your Privacy settings at a level that will allow your browser to accept our cookie. This is purely for security reasons and not for data mining or other uses.

You may want to update your Internet Explorer settings: 

In Microsoft® Internet Explorer:

• Choose Tools,
• Select Internet Options.
• Select the Privacy tab. 
• Move the slider bar to Medium for the Internet zone. 
• Click OK.