Ok so you have temporarily cleared your browser settings right? if you haven't then click the link and try that first- its quicker, easier and if that doesn't work. The following advice won't help.
Warning: permanently clearing your browser settings will mean that other websites that you visit will be affected. For example you will have to sign into Facebook and Twitter again! :o
As each browser is different the instructions are different. We could copy them out for each different one - but that would be cheating (and a lot of reading for you) so instead click the browser name below to be redirected to the relevant instructions.