On Wed, 13 Aug 2008 17:59:22 +0200, Martin wrote:

It is Google groups that decides to retain the messages for a certain number of
days.

Aaah - sorry, I failed to notice that Rob was using Google Groups.

Simple answer to his problem - don't use Google Groups ? Posts would *not*
disappear from threads if using a proper News reader + a proper News
server. Simple or what ?
--
Regards,

Hugh Jampton