linking excel spreadsheets into word

When I link several excel spreadsheets into my Word document (word/excel
2000) they all look great on screen -- spreadsheets followed by paragraphs of
narrative -- but when I print it, some of the spreadsheets migrate to other
places in the document, or totally disappear, or print out distorted beyond
belief (squashed, expanded, unreadable). I did edit paste special as link,
excel worksheet. Is there a way to "lock" them in place, and make them print
appropriately? Default font for Word and Excel both Arial 10 pt. Is this
some kind of glitch? I'm on a LAN share file with my boss, who contributes
the narrative portion after I update the spreadsheets for the month end
report.
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Barb