2010

• 1). Add the animation or effect to the item that you want to animate.
  
  
• 2). Click on the "Animations" tab, then click the "Show Additional Effects Options" button.
  
  
• 3). Click on the "Timing" tab. Click on the list next to the "Repeat" label. Select "Until End of Slide."
  
  

2007

• 1). Add the animation or effect to the item that you want to animate. Click on the item to select it.
  
  
• 2). Click on the "Animations" tab, then click "Custom Animation."
  
  
• 3). Right-click on the effect in the custom animation list and select "Timing." Click on the drop-down menu next to the "Repeat" label. Select "Until End of Slide." Click "OK" to close the dialog box.