> > This message was posted as a reply to your 19446 message. 
> 
> Yup - yours got threaded, Christophe's didn't.
> 
> Is there an Outlook option to turn on In-Reply-To or References
> headers?

I doubt it ... I browsed around and didn't find anything (but it could be
buried in there somewhere). In case it's a version specific issue, this is
coming from Outlook 98, replying to 19449.

Chris