Version: 1.9.7 (using KDE KDE 3.5.7)
Installed from: Ubuntu Packages
I'm running 3.5.7 packages from Kubuntu feisty.
When retrieving messages from an imap server only one message is filtered. Selecting all new messages and hitting Ctrl-J only filters the first message too. So I have to select every single message and hit Ctrl-J.
KMail should - as in 3.5.6 - filter ALL incoming messages.
*** This bug has been marked as a duplicate of 126182 ***