closeStack doesn't close Stack:(

[Tiemo Hollmann TB]

Hello again, I thought that would have been a basic, but:

on menuPick

--

                send "closeStack" to this card

                exit to top

--          

nothing happens! (tried it also without "send", just closeStack)

My on closeStack handler gets the message and has a pass close Stack at the
end. Probably I am missing some rev basics :(

How do I close my app correctly?

Thank you for any help

Tiemo