Resource types

We're getting an interesting problem when trying to upload/link a pdf file. If you use any of the following characters leading in the description as the first word, Moodle jumps you back to the description field and won't finish the save: "p", "d", or "f". If you change the description to start with a different letter it works (which is the workaround). Has anyone else experienced this? We're running ver 2.1.2+. php 5.3.6 centos and Postgres db. Doug