Issue #5209 - Partial fix. Currently does not support FULLTEXT on a field that already has an INDEX.

e107_plugins/chatbox_menu/chatbox_sql.php

@@ -5,5 +5,7 @@ CREATE TABLE chatbox (
 	cb_datestamp int(10) unsigned NOT NULL default '0',
 	cb_blocked tinyint(3) unsigned NOT NULL default '0',
 	cb_ip varchar(45) NOT NULL default '',
+	FULLTEXT (cb_nick),
+	FULLTEXT (cb_message),
 	PRIMARY KEY  (cb_id)
 	) ENGINE=MyISAM;