Message threading on this list

[John Pilkington]

I'm used to reading messages in order of time of arrival.  Threaded 
display in Thunderbird, or the presentation of the archive by 
Hyperkitty, doesn't do this; the current thread about NVIDIA drivers is 
utterly disjointed in both, with recent posts buried at random partway 
up the display.  Is there a fix?

John P