Database error message when upgrading

[CEOPcGamingGuru]

I just tried to upgrade and i get this error in the admincp:

Database error in vBulletin 3.6.0:

Invalid SQL:

	SELECT adminmessage.adminmessageid
	FROM adminmessage AS adminmessage
	INNER JOIN adminlog AS adminlog ON (adminlog.script = adminmessage.script AND adminlog.action = adminmessage.action)
	WHERE adminmessage.status = 'undone'
		AND adminmessage.script <> ''
		AND adminlog.dateline > adminmessage.dateline
	GROUP BY adminmessage.adminmessageid;

MySQL Error  : Illegal mix of collations (latin1_swedish_ci,IMPLICIT) and (latin1_general_ci,IMPLICIT) for operation '='
Error Number : 1267
Date         : Tuesday, August 8th 2006 @ 12:08:22 PM
Script       : http://www.pcgaminggurus.com/forums/admincp/index.php?do=home
Referrer     : http://www.pcgaminggurus.com/forums/admincp/
IP Address   : 68.188.237.85
Username     : CEO
Classname    : vb_database

anyone have any ideas?