Hello everyone,

Perhaps I'm a little late in answering your helpfull mail but I've been
very busy, therefore, I'll tell the story from today, saturday 17th of
december.

I first removed RedHat 6.1 and installed 6.0 again. Then I performed an
update to RedHat 6.1 and happily for me everything worked fine!!

Than I removed everything, installed RedHat 6.1 from scratch, and I did
have the same wrong sort order, we knew.
But as you suggested renaming the file /etc/sysconfig/i18n and restarting the
system gave the exact sort order and everything looks fine now.
Still one question: can I be sure this program we rename is of no use
somewhere else
in the system ? If so, just what does it ?!

Second thing, many many thanks to everybody who helped me solving the problem!
Thanks!!

Frans