Hi there GoldenPen
Exactly how you turn it off may depend on the RoboFlavor you
are using. Are you using RoboHelp HTML or RoboHelp for Word?
If it's RoboHelp HTML, you need to edit the Single Source
Layout. If you click through the assorted dialogs you should see
the option to turn off the feature. It's called "Search Input field
in Toolbar".
Cheers... Rick