Another option is to publish your Captivate file so that it is a single file, instead of two files. To do this:
Go to the Project menu.
Click the Borders tab.
Uncheck the Show Borders box.
If you change the playbar in any way (different color, position, etc.) it usually re-checks the Show Borders box, so you may have to go back in and uncheck it again.
When you do it this way, the playbar covers up the bottom of your simulation, so you’ll need to make sure it isn’t covering anything important.