[Evolution] update of unread mails

[BlinkEye]

suddenly the update of the folder/mail structure on the left doesn't
work anymore, meaning that allthough i've read a message and hence
marked it as read the folder/mail structure still shows the same number
of unread messages as before. the only thing i can do is restart
evolution which then updates the number correctly but only once, i.e. at
the beginning.

i tried this with evo-2.0 and evo-2.2.1.1, same behaviour.

any ideas?

regards
blinkeye