I had a slide show that ran when I clicked preview yesterday. Today, I tried to update it and run a preview and nothing worked. It froze. There was no error message. Just a frozen screen. I tried to publish the slide show and got the message attached. I have no idea what it means. Should I remove the info in the app data file? I tried to make a new very basic slide show, and dragged in three slides, and that did not work either on preview or publishing. It froze. I have run my antimalware software, and it found nothing. I ran my antivirus software as a back up and all was fine. I am using version 8.0.10. I have Windows 7 64 bit with 16mgb ram which has always worked before. Should I download the program again? If so, should it be this version since this is now giving me trouble? Up to now, it has been a wonderful always working program.