We have had reports of PowerPoint 2002 problems after installing the April 2011 Pubilc Update.When you open presentations that contain layouts with background images in PowerPoint 2002, an error may occur. When the error occurs, you receive a message that states that some contents (text, images, or objects) have corrupted. You can determine what content has been lost by viewing the layout, but not by viewing the slide content. Items that were removed will display a blank box or a box that contains "cleansed."
This update will also be made available as part of a future Public Update for PowerPoint 2002. We recommend all users who have installed KB2464617 to install this replacement hotfix.