Use a "label type" mailmerge and select a label format that matches your
postcard stock.
Also, see the article "Mail merge to labels with Word XP" on fellow MVP
Graham Mayor's website at:
http://www.gmayor.com/mail_merge_labels_with_word_xp.htm

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Hope this helps
Doug Robbins - Word MVP
>I would like to use Word in Office XP to mail merge onto "4-up" laser
> postcards. I am using this for a mass mailing in the real estate business.
> Anybody know how i can set up word so that the mailing list will print out
> for addresses in the appropriate spots on the 8 1/2 x 11 sheet that
> comprises
> my "4-up" postcards?