This will happen when Word does not recognize the document font as one used
for text. If the font is coded as a "decorative" or "symbol" font (like
Symbol or Wingdings), Word thinks it can break lines anywhere. Do you still
see this problem if you select the entire document and apply Times New Roman
or Arial?

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
Email cannot be acknowledged; please post all follow-ups to the newsgroup so
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"bsong2002" wrote in message
...
I opened an old file of mine and was working on it when all of sudden the
document changed subtely and all of the words on the edges of the
paragraphs
were broken. So that, a word "solution" that was the last of word of a
line
was broken into "Solut" which stay on the line and the remaining letters
"ion" appeared on the next line. Every single words at the edge of the
paragraphs were like that. Does anybody know how to fix this mess?