Much obliged.  Thanks for bringing that to my attention.

    Mark

On 8/24/2011 1:51 AM, Jason Rumney wrote:
> C-h n will give you the NEWS file, explaining all the changes in the latest version of Emacs.  In there you will find the answer you are looking for (how to get the old behaviour back):
>
> ** Changes affecting display-buffer
>
> *** display-buffer tries to be smarter when splitting windows.
> The new option split-window-preferred-function lets you specify your own
> function to pop up new windows.  Its default value split-window-sensibly
> can split a window either vertically or horizontally, whichever seems
> more suitable in the current configuration.  You can tune the behavior
> of split-window-sensibly by customizing split-height-threshold and the
> new option split-width-threshold.  Both options now take the value nil
> to inhibit splitting in one direction.  Setting split-width-threshold to
> nil inhibits horizontal splitting and gets you the behavior of Emacs 22
> in this respect.  In any case, display-buffer may now split the largest
> window vertically even when it is not as wide as the containing frame.
>
>
> This is for 23.3, for 23.2, you may not have the option of setting it to nil (judging by the wording above, this was added at a later date) but setting it to a very large value (more columns than will fit on your display) should also work.