I'm thoroughly bewildered by this application. If I add pdf documents, then attempt to search either by a word contained in the title of one of the documents or by a word contained in the document itself, no results are returned. If I then try to add a document or a set before clicking the cancel button that appeared after initiating a search by typing something into the text field then pressing return, the application stops responding. If I select Preferences from the File menu, nothing happens. I'm using 10.6.2 and Shoka version 1.5.

I concur with previous speaker. Although I'd like to thank the developer for a fine product!