[Plugin: Dave's WordPress Live Search] No live results – just spinning graphic

Hi,

Running latest WP and your plugin. When I click in my text field and start typing I see the spinning graphic but no drop down of results.

I am running in on my localhost, with PHP 5 and also with the Relevanssi search plugin.

When I try to debug in Safari – it says failed to load resource: daves-wordpress-live-search-ajax.php

any clues

Cheers
KB