The browser cache stores information from the internet to make browsing more efficient, but sometimes this causes problems. Sometimes you will need to clear your cache to see a saved change or sort a list.
The easy way to clear the cache is to exit the browser and then go back in.
You can clear the cache while you are in the browser; typically clearing the cache is a menu choice.
In Firefox, you click Tools (gear-shaped button) on the top menu, then Clear Recent History.
In IE, under Tools, select Delete Browsing History, then Temporary Internet Files.