SQL warning message: user warning: Illegal mix of collations....

Hi,

Thanks for creating this module. I was trying to get it running on my test site. I created the view. But, when I try to search for anything, I get the following warning message -

user warning: Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=' query: CREATE TEMPORARY TABLE temp_vfs SELECT n.nid, SUM(1.25 * COALESCE((i.score * nt.search_weight), 0) + 1.75 * COALESCE((i.score * t.count), 0) + 1.25 * COALESCE((POW(2, GREATEST(n.created, n.changed) - 1217191246) * 6.43e-8), 0) + 0.75 * COALESCE((2.0 - 2.0 / (1.0 + c.comment_count * 0.5)), 0)) AS score FROM node n LEFT JOIN search_index i ON n.nid=i.sid LEFT JOIN vfs_ranking_nodetype nt ON nt.type = n.type LEFT JOIN search_total t ON i.word=t.word LEFT JOIN node_comment_statistics c ON c.nid = i.sid WHERE i.fromsid=0 AND i.word IN ('russian') GROUP BY n.nid HAVING COUNT(*)=1 in C:\xampp\htdocs\drupal-5\includes\database.mysql.inc on line 172.

Please can someone help me out? I would really like to use this functionality. Not sure if it helps, but when I had created my drupal database, I had chosen utf8_unicode_ci as the collation. I hope that isn't somehow messing this up.