Search Archive Issues

Hello,

This weekend I reinstalled openfire to move to a mysql DB. My search archive seems to be work fine, I can pull up all the chat logs and search via key words, however when I try to search by Participants nothing happens, it used to auto fill the name as I started typing but now nothing happens, and even if I do put a correct name in and search nothing is pulled up. Is there some server property that I have missed setting?

Thanks,

Abe