Well that means your computer can see it so it's a problem with the browser or something elsewhere, have you tried deleting the cache etc in IE?

I guess you are using IE, if so this is how, click "Tools" right hand side in Internet Explorer from the menu select "Internet Options"

Click delete in this window then leave the default options which are ticked and just click delete at the bottom, Restart IE, let us know how this goes...

Martin