It's a font data problem, most likely the result of your version of Acrobat being so old that it can't understand the Postscript being sent to it by your applications.
You could try walking through the troubleshooter guide at http://kb2.adobe.com/cps/317/317147.php but it'll probably just end up telling you that you have to upgrade.
You could try walking through the troubleshooter guide at http://kb2.adobe.com/cps/317/317147.php but it'll probably just end up telling you that you have to upgrade.