ok, upgraded to 7.3 yesterday, some users are gettign SQL errors, I was able to duplicate it myself finally by using firefox and trying to browse the forums while not logged in.

UBB Message
We encountered a problem. The reason reported was

Script: /var/www/virtual/v/a/vannin.com/www/threads/scripts/postlist.inc.php
Line#: 520
SQL 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 14
SQL Error #: 1064
Query: select t1.TOPIC_ID,t1.POST_ID,t2.USER_DISPLAY_NAME,t1.TOPIC_CREATED_TIME,t1.TOPIC_LAST_REPLY_TIME,t1.TOPIC_SUBJECT, t1.TOPIC_STATUS,t1.TOPIC_IS_APPROVED,t1.TOPIC_ICON,t1.TOPIC_VIEWS,t1.TOPIC_REPLIES,t1.TOPIC_TOTAL_RATES, t1.TOPIC_RATING,t3.USER_NAME_COLOR,t2.USER_MEMBERSHIP_LEVEL,t1.USER_ID,t1.TOPIC_IS_STICKY,t1.TOPIC_LAST_POSTER_ID, t1.TOPIC_LAST_POSTER_NAME,t1.TOPIC_LAST_POST_ID,t1.TOPIC_IS_EVENT,t1.TOPIC_HAS_FILE,t1.TOPIC_HAS_POLL,t1.TOPIC_POSTER_NAME,t1.TOPIC_THUMBNAIL,t4.POST_BODY from ubbt_TOPICS as t1 left join ubbt_USERS as t2 on t1.USER_ID = t2.USER_ID left join ubbt_USER_PROFILE as t3 on t1.USER_ID = t3.USER_ID left join ubbt_POSTS as t4 on t1.POST_ID = t4.POST_ID where t1.FORUM_ID = 1 and t1.TOPIC_IS_STICKY = '0' AND t1.TOPIC_IS_APPROVED = '1' ORDER BY t1.TOPIC_LAST_REPLY_TIME desc LIMIT

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Responded in opened support ticket. You'll want to check in the control panel under Display Options -> Primary -> TOpic Display Options, check to make sure that the Default Replies Per Page has a value, default is normally 10.

did that, will see what happens.

So does everything seem okay now?