Missing lines in table after convert a word file to PDF format

We use Word 2010 to save a table to PDF format. Some lines in the table is missing if use Acorbat Reader in 126% view, but it is fine if change to 200% view and print out.
We already installed up-to-date Acorbat reader and updates.

any idea how can we fix this problem?
Thank you.
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These people seem to have the same or similar problems, as you...try to read along here:
(1) http://acrobatusers.com/forum/pdf-creation/word-pdf-table-lines-missing-or-faded
(2) http://www.planetpdf.com/forumarchive/102546.asp
(3) http://www.pcreview.co.uk/forums/missing-table-lines-conversion-pdf-t878406.html
It seems that a popular solution is to not use the "Convert to Adobe PDF" method but rather print to the the Acrobat Distiller print driver installed with Acrobat clears up the problems.

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alternatively, maybe you can try new version of Open Office (to make sure it can read docx/Word 2010 format) and export to PDF from menu File - Export as PDF
Sometimes i get similar problem i use Cute FTP.
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