Loop
To enable presentation looping, follow these steps:
1.On the Control bar, click 
More. In the drop-down list, select Slide duration.
2.In the sub-menu that appears, check the Loop box.
To disable presentation looping, clear this checkbox.
To enable presentation looping, follow these steps:
1.On the Control bar, click More. In the drop-down list, select Slide duration.
2.In the sub-menu that appears, check the Loop box.
To disable presentation looping, clear this checkbox.