AI> Hello Oli,

 AI>>> When I reply to Dan's reply to Frank that caused that, just a
 AI>>> few messages back.

 Ol>> Even with that mail I cannot reproduce the problem. When does it
 Ol>> happen? right after reply in editing mode or after the mail was
 Ol>> saved? I wonder what the difference between my Golded and your
 Ol>> Golded are. You use Squish? 32 or 64 bit?

 AI> It happens as soon as I hit Q to reply, I can see it in the
 AI> header.

 AI> I am currently using Jam bases but have seen the same with Squish
 AI> bases also.

The subject is scambled before it's written to the message base, it seems it
doesn't have anything to do with the message base.

 AI>  I use a mix of OSs, generaly slackware or debian, always
 AI> the x86_64 releases.

 AI> Maybe it a 32 vs 64 bit thing?

Maybe. My Linux is 32-bit (Raspbian).

You could try MsgEd ;)