Re: Emacs problems with large (3MB) text files.

[Richard Stallman]

    Anyway, when I selected the OK's and hit the delete key I got the
    following message, and emacs stopped responding, even to window close
    via the button in the tittle bar.


Please try running Emacs under GDB so you can find
out what it is actually doing in that state.
Why doesn't it respond to commands?

    The message:

    timed out waiting for property-notify event

That message comes from wait_for_property_change, which signals an
error with that message.  The error probably does a longjmp.  Where
does control go then, and what happens?