Mark Forums Read Not Working

[evenmonkeys]

When you click "Mark Forums Read" you get this error...

Database error in vBulletin 3.5.1:
Invalid SQL:
SELECT * FROM forum WHERE forumid =;
MySQL Error : You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Error Number : 1064
Date : Sunday, November 27th 2005 @ 02:21:26 AM
Script : http://forums.site.com/forumdisplay.php?do=markread
Referrer : http://forums.site.com/index.php
IP Address : 24.117.179.129
Username : name
Classname : database