ADM File

I am trying to import an ADM file. I've imported it fine and even set it to
the setting I'd like, but nothing changes on the clients as the log in.

CLASS USER

CATEGORY !!DisableIEReuseWindow

POLICY !!DisableWindow
KEYNAME "Software\Microsoft\Internet Explorer\Main"
EXPLAIN !!DisableWindow_Explain
VALUENAME "AllowWindowReuse"
VALUEON NUMERIC "1"
VALUEOFF NUMERIC "0"
END POLICY

END CATEGORY

[strings]
DisableWindow="Reuse Windows for Launching Shortcuts"
DisableWindow_Explain="Removes/Adds check from Advanced Settings for Reuse
Windows for Launching Shortcuts within Internet Explorer. Enabled = Adds
check / Disable = Removes check."
DisableIEReuseWindow="Manually Created"

Am I doing something wrong within the code? I've tried disabling it and
enabling it and I get no change in the "checkbox".

Any help would be appreciate... of even if there is a better way to deal
with this setting, that would be great too.

Thanks!