J-BusinessDirectory - Please search by Keyword

HI 

When i try to search my directory by category a message comes up in the keyword search saying "please enter keyword"

I have gone into the modules and selected "Keyword Mandatory"  = no but i still can't the search to run without the message when I select a category. 

Have i missed a setting somewhere?
Regards

Joe

You need to set the min characters to 0 in the module settings.