Good afternoon, There is a very troublesome problem with PowerPoint 2010. The situation is this. Installed on your computer for Microsoft Office 2010 Home & Business (the license). Now when you open the presentation of periodic error takes off: With PowerPoint found a problem with the contents name of presentation. With PowerPoint can recover the presentation. If you trust the source of this presentation, click on "Restore". If you attempt to restore, PowerPoint throws out half the contents of Presentation. The presentation, by the way, was made initially in Open Office. If someone faced a similar problem help, any idea? Thank you in advance.