Most likely it's a message with an improper reference line. Newsgroups
Group by Conversation depends on the Reference line in the headers, so if
that info is corrupted or modified by the sender, it will not group
properly.
--
Jim Pickering, MVP, Outlook Express
https://mvp.support.microsoft.com/pr...8-1171988A62D6
Please deliver feedback to the newsgroup, so that others can be helped.
Thanks.


"Bill Marriott" <wjm@wjm.org> wrote in message
news:%237G66Ii7FHA.720@TK2MSFTNGP10.phx.gbl...
> Hi,
>
> For some reason, a particular thread is not showing up when I view my
> newsgroup with
>
> View-->Current View-->Group Messages by Conversation
>
> All the messages in the thread in question will appear if I deselect the
> Group option. None are marked for ignore or anything like that. They will
> also appear if I do a Find, whether the Group option is active or not. But
> when it's Grouped, it's just not there.
>
> Ideas?
>
> Bill
>