I have a problem with a thread that the last post acc. to the "Post"-column is not shown.

We only see the thread up to one post just before (Mon Sep 08 2008 11:38 PM):
http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=356203#Post356203

If you click the last one directly (Tue Sep 09 2008 02:23 AM) through the "Post"-column on the forum topic list, then you get there:
http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=356207#Post356207

This way i also noticed something peculiar, that might give a hint:

Below that post from user "Pergor" the listing claims it would be on page 71 of 70 (!).

So the topic index might have been corrupted or something?

Is there any solution to that by e.g. compact the database?

This is the link to the thread with the technical issue:
http://www.larian.com/forums/ubbthreads.php?ubb=showflat&Number=15052&fpart=70

Thanks for the help,
Lynn