Clearing your browser’s cache occasionally is a good preventative measure to avoid problems with pages displaying or updating correctly.
Once your browser is open, click the Tools icon and select Internet Options.
Make sure the General tab is selected.
Under "Browsing History" click "Delete…"
In the new window, tick the “Temporary Internet Files” checkbox
Click the Delete button
Once your browser is open, right-click on a blank area above the address bar and from the context menu choose “Menu bar” to display the menus
From the Tools menu choose “Clear Recent History” and from the “Time range to clear” pulldown select “Everything”
In the “Details” pull down arrow make sure that "Cache" is checked.
Click the Clear Now button
Once your browser is open, click the “Customise and Control Google Chrome” icon and select “History”
Click “Clear Browsing Data” and from the “Obliterate the following items from” pulldown select “From the beginning of time”
Make sure the “Empty the Cache” checkbox is selected
Click the Clear Browsing Data button
Once your browser is open, click the Safari menu and select Empty Cache
Confirm the action by clicking Empty in the pop-up window