Another possibility, if you want just a rollover and not a click, is to create a transparent rectangle. 1) Use the rectangle icon in the Shapes menu. Draw the rectangle over the area (DOS) that you want to link.(At least in Lectora 2006, this is displayed at the bottom of the screen.)2) Right click on the rectangle you drew. Select "Edit" a) Set Shape Fill to transparent b) Uncheck Outline3) Right click on the rectangle again. Select "Properties" and make sure you check the "Always on top" option.Now, for the transparent box create an action-On Mouse Enter: Display Message (this works the same way as in the response above)You also could have text boxes that pop up and disappear, but that would be more complicated (the explanation text box would have to not be initially visable and then one action to show it on Mouse Enter and another to hide is on Mouse Exit).You can do the same for as many heading as you want, just draw more rectangles and add actions to each of them.Hope that helps!Edited By: seans on 2006-11-10 8:51:35