Actually I'm getting a strange intermittent problem which happens when the linked pager is present. The forum error page is displaced and I've attached the stacktrace from it in a text file.
It only happens on some threads and I can't identify a pattern other than perhaps when there are more than X (50???) pages in the thread. Another odd thing is the path in the stacktrace (C:\inetpub\wwwroot\YAFNET_3_1_8_source) is not correct for my server so I don't know where it is being picked up from.
pager_stacktrace.txt You have insufficient rights to see the content.