The same way as in any other version. You must choose the desired width
first, then click on the appropriate line on the preview in Format | Borders
and Shading or in the palette available from the Borders button on the
Formatting or Tables and Borders toolbar.

--
Suzanne S. Barnhill
Microsoft MVP (Word)
Words into Type
Fairhope, Alabama USA
Word MVP FAQ site: http://word.mvps.org
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"baby2th" wrote in message
...
In MSWord2003, how do we selectively change the widths of gridlines?