occur and next-error-follow-minor-mode

[LaserDoodads]

I've always used next-error-follow-minor-mode in the *occur* buffer.
Recently I noticed that the buffers switch among the windows when ever the 
cursor moves to a different line.

While visiting any file with several lines containing some text

M-x occur <ret> {something in your file several times} <ret>
C-x o
M-x next-error-follow-minor-mode <ret>
C-n
C-n
C-n...

In GNU Emacs 22.0.50.1 (i386-msvc-nt5.1.2600)
of 2005-11-11 on LD1
X server distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-msvc (12.00)'

Important settings:
 value of $LC_ALL: nil
 value of $LC_COLLATE: nil
 value of $LC_CTYPE: nil
 value of $LC_MESSAGES: nil
 value of $LC_MONETARY: nil
 value of $LC_NUMERIC: nil
 value of $LC_TIME: nil
 value of $LANG: ENU
 locale-coding-system: cp1252
 default-enable-multibyte-characters: t

Recent messages:
(C:\emacs\bin\emacs.exe -Q --no-splash)
Loading encoded-kb...done
For information about the GNU Project and its goals, type C-h C-p.
Searched 1 buffer; 21 matches for `grey'
Next-Error-Follow minor mode enabled