I have about 6 slideshows that I created in FM5 6-8 years ago. When I tried to play several of them, I got the following message: “Slideshow is damaged and can’t be opened. You should move it to the Trash”. However, some of the slideshows will still play. Since this has never happened before, I am at a loss as to how I can retrieve the slideshows.Please help!! Thank you.