[ActiveDir] windows 2003 domain

[Kern, Tom]

If i have a forest where one domain has upgraded to windows 2003 at the win2k 
functional forest and domain level, would this have an adverse effect on other domains 
which were running dc's with win2k sp2 or vice versa?
do those dc's/gc's need to be at least sp3?
thanks
List info   : http://www.activedir.org/mail_list.htm
List FAQ    : http://www.activedir.org/list_faq.htm
List archive: http://www.mail-archive.com/activedir%40mail.activedir.org/