Keep getting 'Page cannot be displayed' after every 4 or 5...
 

...pages I browse. I'm also getting a Google error message aswell 'Oops! This link appears broken. Page not found - connection failure.'

Only noticed this problem over the last week or so and it's getting extremely annoying. When I get either of the error messages all I need to do is click 'Back' then click 'Forward' and the page will load up, or just close the browser and open a new one.

Anyone any ideas what it could be? I'm running Windows Vista and I.E 7 (or is it 8? Whatever the latest one is ;)

Any help would be great folks.