Clear your cache and cookies
Your computer saves bits of information from every website you visit. This data can save you loading time or help a website identify you and your preferences on that website. Sometimes a website may make a change and this cache/cookie data becomes out of date and can cause a variety of problems. One of the best and simplest troubleshooting ideas when having problems with a webpage is to clear your cache and cookies.
For detailed instructions on how to clear the browser cache for each web browser, follow this link http://www.refreshyourcache.com/. It is usually good to clear your cookies while clearing your cache and the option to do so is usually adjacent to or integrated with the cache clearing option in any browser.