follow-mode windows overlap

[boskom]

Hi to all,

I have encountered the following issue with follow-mode in gnu emacs
v23.3.1 on windows xp  (it may apply to other emacs versions  too, did
not have time to check):
run emacs: emacs -Q
Open a file,
decrease text size one or several times with M-x text-scale-decrease
split window
invoke M-x follow-mode

While moving cursor downward it moves to another window before it
reaches bottom of current window, it jumps to other window at the same
line from where it jumps when using default font size.

Even worse when increasing text size above default one, cursor does
not leave first window no matter how far you move it.

Is there some way around this,

Regards,
B.