[boost] Off topic:making replies threaded

I use http://news.gmane.org/gmane.comp.lib.boost.devel to read group archives and I send my replies from Yahoo mail. After trying several variations on mail Subject prefixes I still can not make my replies appear as the part of the thread, when viewed from Gmane. I am sure some will find those 'detached' replies as annoying as I do so any suggestion on how to fix it would be much appreciated. Tony __________________________________ Do you Yahoo!? Yahoo! Mail - You care about security. So do we. http://promotions.yahoo.com/new_mail