Notifications on new mails are shown only once
When new mails (one ore more) are available, I receive a notification, and "New mail" icon appears in the tray. Then, more new mails may appear, but: 0. I won't get any notifications until I switch to TB window 1. New mail counter in tray tooltip displays only number I got in notification. E.g. I've got a notification about 3 new mails, then some more mails may appear, but tray icon will inform me that I have only 3 new mails. After switching to TB window I can see that I actually have 10 or even more new messages! As you may understand it adds some troubles on being correctly notified about important messages in time.
How to fix this problem?