KMail seems to be working fine for me now on my Fedora-16 laptop.
I saw there was a kdepim update which may have been responsible.
But something else I did which seemed to have a dramatic effect
was to yum-reinstall mysql and mysql-server.
Akonadi seemed to take some time after this re-creating a database,
which I don't recall it doing before, when moving to KMail2?
--
Timothy Murphy
e-mail: gayleard /at/
eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College Dublin