[imedic]

I have 406PL1 and I just installed arcade without any problem. All was functioning for a day then when accessing threads I receive this error:
Database error in vBulletin 4.0.6:

Invalid SQL:

SELECT t.champion, u.userid FROM tournaments AS t
LEFT JOIN user AS u ON (t.champion = u.username)
WHERE champion<>'';

MySQL Error : Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '='
Error Number : 1267
Request Date : Saturday, August 21st 2010 @ 10:56:09 AM
Error Date : Saturday, August 21st 2010 @ 10:56:09 AM
Script : http://www.vetforum.ro/showthread.php?t=264
Referrer : http://www.vetforum.ro/forum.php
IP Address : xxx.xxx.xxx.xxx

I have an UTF 8 database as I need it for special characters.
Disabeling the product solved the problem so is an arcade issue.