In the OFFICE2003 version, select the text or slide to which you want to add an action, and select Toolbar Slide Show-Custom Animation (the check box pops up on the right side of the window)-Select Add Effect-Enter-Fly in-Select the direction from the bottom. !

In the OFFICE2007 version, select the text or slide to which you want to add action, select the toolbar Animation-point out all animations with the drop-down arrow-select Push Up-select Switch the speed on the right side of the toolbar-slow, and it's OK!