Hi Chris Saunders,
Thanks for using lunascape.
Sorry for delayed response.
This might occur sometimes due to networking or system settings
You can try this out, From menu bar->tools->lunascape setting->Tool bar->address bar->
Under the select search engine for address bar, select default engine. In many cases this has worked. Hope this helps. If you still face the problem, please contact us. Mean while will investigate your problem.