I have a page that has a fileupload control on it. The page also has a linkbutton that when clicked redirects to another page. The problem that I am having is that when the user is redirected to that page, if he clicks on the browser's (IE 8) 'Back' button an error page comes up saying "Webpage has expired". If the user clicks on the 'Back' button 3 or 4 times, he will eventually be returned to the file upload page.
How do I get the application to immediately go directly back to the file upload page when the 'Back' button is pressed instead of the user having to see a page saying "Webpage has expired"?