Hello all!
I've found that when a new and unread message is selected but not opened,
then marked as read by clicking the blue ball-star, then selecting another
message does not make the first message un-bold.
1) Select unread message (now bold, white, with red bg)
2) Mark it read by clicking the blue ball (same layout)
3) Select another message (first message now bold, black, white bg)
I haven't looked at a solution yet.
Remmelt