Several concerns about latest version. When I try to move or delete a message, rather than disappearing, the message remains on my screen until I return to the folder. This means multiple extra clicks for each message. When sending messages, the software sends it, saves it, then tries to save it again, prodcing an error message that it was sent by not saved. If I look, the message is in my "sent" folder. In Firefox, the latest version generates a pop-up message every time I open a web site.