Working in State View

Sometimes the easiest way to correct something (not just true in Captivate) is to delete it and start from scratch. In this case, I would delete the Rollover and Down states. You can delete states by right-clicking on those states and selecting Delete State.  Once those are deleted right-click on the normal state and select Add State. Select the Inbuilt State for Rollover. Repeat these steps to recreate the Down state as well. You will have three identical versions of the Normal state for all three of your states. Now you can modify the Rollover and Down states to your liking. Once you are finished I would recommend that you save this new configuration as an Object Style so you can easily apply the design appearance to other buttons throughout your project.

Not sure which type of 'button' you are talking about, but it looks to be a shape button? Can you please confirm?

What you show is NOT the default behavior. If you convert a shape to a button, the Rollover and Down states are locked to the Normal state for their size and location. You could add objects to states, but the core region (clickable) should be the same. I wait for your answer to my first question. You may have a look at my overview of the 6 button types in Captivate 11.5 (not sure which version you use).

http://blog.lilybiri.com/overvew-6-button-types