"Another point to remember is that the operational buttons, such as the Start button, will be disabled as long as you haven't filled all the required information. For example, you can click the Start button of the Registry Finder only after you have written one or more search words, and so on."
From page 6 under the caption "Important notes about the user interface"
For more information, please see: http://www.macecraft.com/html/jv16pt2005_docs/Handbook.pdf
