Is this about a dedicated window? If so, how?
(I see "dedicated" in the Subject line but nowhere in the message body.)
I believe it is, or at least I am pretty sure I tried to change buffers
interactively in the window and got the error beep. What I
actually wanted was to change buffers in the other window.
So, if indeed it is a dedicated window, that's not strictly
the reason why I am bothered by said window.
Sorry for the confusion.
João