The PDFs look OK here with both Preview and Skim. I would try to
delete the font cache on your computer and restart it.
Use google, I'm not sure that I still remember how this should be
done. Some untested sample links:
http://www.macosxhints.com/article.php?story=20071026081555971
http://www.creativetechs.com/iq/garbled_font_fix_corrupt_font_cache.html
http://kb2.adobe.com/cps/167/tn_16763.html
Mojca
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