Changes to Thunderbird 17 title bar (which now can contain tabs) means RBTray can no longer minimize it to tray.
(The problem appears to mirror the same problem with Firefox when it obtained the new app button and title bar was changed to contain tabs).
Can this be fixed in RBTray? Sending Thunderbird to tray was my primary reason for using RBTray (and I suspect for others too).
If anyone can work on this, many many thanks.