hijacked threads - this is the correct fomat for new mails

Hello all,

the first mail was a test for me - it indeed got sorted the "wrong way" ...

because I used the "answer" method to create my mail,  although
I changed the subject.

Once again: this *new* mail should make up a new thread now !

I really *like* to have my list-emails sorted by thread-ids, but as
long as people don't create a *new mail* when posting a *new subject*
then this is a mess, especially when browsing backwards to do a fast
search in yesterdays postings, to find something in a hurry.

So, *please*, do us a favour and make up new mail when changing subject.

Philipp