Password protected pages, can't view content?

Hi there, I use password protected pages on my site and they have been working fine and i can view the content through admin and if you click on the link and put the password word in the content is visible. I’ve recently upgraded to prophoto5 and still could view the pages but I’ve tried the link and password to a particular page and I can’t view the content? I’ve tried everything and none of my pages that are password protected are working. Can anyone help please! Thanks.